CN114856527B

CN114856527B - Method and device for determining wellhead distance in cluster well and computer storage medium

Info

Publication number: CN114856527B
Application number: CN202110151516.6A
Authority: CN
Inventors: 唐世忠; 吴华; 步宏光; 李东平; 张勇; 李娟�; 张学强; 李胜杰; 韩克玉; 杨涛; 吕照鹏; 林莉莉
Original assignee: Petrochina Co Ltd
Current assignee: Petrochina Co Ltd
Priority date: 2021-02-03
Filing date: 2021-02-03
Publication date: 2023-08-22
Anticipated expiration: 2041-02-03
Also published as: CN114856527A

Abstract

The embodiment of the application discloses a method and a device for determining wellhead distance in a cluster well and a computer storage medium, belonging to the field of petroleum engineering. The method comprises the following steps: before drilling an oil and gas well at a well site of a cluster well, a first wellhead and a second wellhead are assumed, wherein the first wellhead and the second wellhead are the wellheads of any two adjacent wells of the cluster well to be drilled, a pumping unit is assumed to perform production operation on the first wellhead, and a workover rig is assumed to perform maintenance operation on the second wellhead. The allowable spacing between the first wellhead and the second wellhead is thereby determined based on assumed dimensional parameters of the various components comprised by the pumping unit of the first wellhead and dimensional parameters of the various components comprised by the workover rig of the second wellhead. Therefore, after the oil and gas well is drilled at the well site, when the workover rig maintains the second wellhead, the normal operation of the pumping unit on the first wellhead is not affected. Thereby avoiding the problem that the adjacent well cannot normally produce when the workover rig maintains the oil and gas well.

Description

Method and device for determining wellhead distance in cluster well and computer storage medium

Technical Field

The embodiment of the application relates to the field of petroleum engineering, in particular to a method and a device for determining wellhead spacing in a cluster well and a computer storage medium.

Background

As the area of land used decreases, the well site becomes increasingly tight. The cluster well layout method can reduce the land area of a drilling well site. Therefore, more and more drilling sites adopt a cluster well layout method, wherein a plurality of oil and gas wells are drilled in the drilling sites, the well heads of the oil and gas wells are less than a few meters apart, and the bottoms of the oil and gas wells extend to different directions. In a cluster well layout process, how to determine the wellhead spacing of adjacent wells is a hotspot of current concern.

In the related art, the wellhead distance of adjacent wells is determined based on anti-collision requirements in the cluster well site drilling construction process. After the drilling construction is finished, when the production and maintenance operation of the oil and gas well is finished, namely when the workover rig is used for maintaining the oil and gas well, the pumping unit of the adjacent well of the oil and gas well cannot work normally due to the fact that the distance between the adjacent oil and gas wells is smaller, and therefore the normal production operation of the adjacent well of the oil and gas well is affected.

Disclosure of Invention

The embodiment of the application provides a method and a device for determining wellhead distance in a cluster well and a computer storage medium, which can ensure that after an oil-gas well is drilled in a well site, a workover rig does not influence normal production operation of an adjacent well when the workover rig maintains the oil-gas well. The technical scheme is as follows:

In one aspect, a method for determining a wellhead spacing in a cluster well is provided, the method comprising:

the method comprises the steps that the size parameters of all components included in an oil pumping unit and the size parameters of all components included in a workover rig are obtained, the oil pumping unit is used for operating a first wellhead, the workover rig is used for operating a second wellhead, and the first wellhead and the second wellhead are the wellheads of any two adjacent wells of a cluster well to be drilled;

determining a first wellhead spacing based on dimensional parameters of each component included in the pumping unit and dimensional parameters of each component included in the workover rig, the first wellhead spacing being: when the projection of the front guy rope included in the oil pumping unit and the projection of the front guy rope included in the workover rig on the horizontal plane are intersected, and the height of the walking beam at the intersection point on the vertical plane is lower than the height of the front guy rope at the intersection point on the vertical plane, the allowable distance between the first wellhead and the second wellhead is reduced;

determining a wellhead spacing threshold value based on size parameters of each component included in the pumping unit, wherein the wellhead spacing threshold value is an allowable spacing between the first wellhead and the second wellhead after the pumping unit is placed;

A target spacing between the first wellhead and the second wellhead is determined based on the first wellhead spacing and the wellhead spacing threshold.

Optionally, the determining the first wellhead spacing based on the dimensional parameters of the components included in the pumping unit and the dimensional parameters of the components included in the workover rig includes:

the first wellhead distance is determined based on the gear opening distance of the front guy rope, the distance from the ground anchor center of the front guy rope to the wellhead of the workover rig, the support height of the pumping unit, the derrick height of the workover rig, the maximum included angle between the beam of the pumping unit and the horizontal plane, and the length of the forearm of the beam of the pumping unit.

Optionally, the determining the target interval between the first wellhead and the second wellhead based on the first wellhead interval and the wellhead interval threshold value includes:

if the first wellhead spacing exceeds the wellhead spacing threshold, determining a spacing that exceeds the wellhead spacing threshold and is below the first wellhead spacing as the target spacing.

If the first wellhead spacing is lower than the wellhead spacing threshold, determining a second wellhead spacing based on the dimensional parameters of each component included in the pumping unit and the dimensional parameters of each component included in the workover rig, wherein the second wellhead spacing is: when projections of a walking beam included in the pumping unit and a front guy rope included in the workover rig on a horizontal plane are not intersected, critical spacing between the first wellhead and the second wellhead is formed;

a spacing exceeding the second wellhead spacing is determined as the target spacing.

Optionally, the determining the second wellhead spacing based on the dimensional parameters of the components included in the pumping unit and the dimensional parameters of the components included in the workover rig includes:

and determining the second wellhead distance based on the gear opening distance of the front guy rope, the distance from the ground anchor center of the front guy rope to the second wellhead and the total arm length of the beam of the pumping unit.

Optionally, the determining the wellhead spacing threshold based on the size parameters of each component included in the pumping unit includes:

the wellhead spacing threshold is determined based on a base width of the pumping unit, a base width of the pumping unit disposed at the second wellhead, and a safety distance.

In another aspect, a device for determining wellhead spacing in a cluster well is provided, the device comprising:

the system comprises an acquisition module, a well repairing machine and a drilling module, wherein the acquisition module is used for acquiring the size parameters of all components included in the oil pumping machine and the size parameters of all components included in the well repairing machine, the oil pumping machine is used for operating a first wellhead, the well repairing machine is used for operating a second wellhead, and the first wellhead and the second wellhead are the wellheads of any two adjacent wells of a cluster well to be drilled;

the determining module is used for determining a first wellhead distance based on the size parameters of all components included in the oil pumping unit and the size parameters of all components included in the workover rig, and the first wellhead distance is as follows: when the projection of the front guy rope included in the oil pumping unit and the projection of the front guy rope included in the workover rig on the horizontal plane are intersected, and the height of the walking beam at the intersection point on the vertical plane is lower than the height of the front guy rope at the intersection point on the vertical plane, the allowable distance between the first wellhead and the second wellhead is reduced;

the determining module is further configured to determine a wellhead spacing threshold based on size parameters of each component included in the pumping unit, where the wellhead spacing threshold is an allowable spacing between the first wellhead and the second wellhead after the pumping unit is placed;

The determining module is further configured to determine a target spacing between the first wellhead and the second wellhead based on the first wellhead spacing and the wellhead spacing threshold.

Optionally, the determining module is further configured to:

In another aspect, a computer device is provided, the computer device comprising:

a processor;

a memory for storing processor-executable instructions;

the processor is configured to execute the method for determining the wellhead distance in the cluster well.

In another aspect, a computer readable storage medium is provided, where instructions are stored on the computer readable storage medium, and when the instructions are executed by a processor, the method for determining a wellhead spacing in a cluster well is implemented.

The technical scheme provided by the embodiment of the application has the beneficial effects that at least:

The embodiment of the application is applied to a cluster well site to be developed, and before an oil and gas well is drilled in the well site, a first wellhead and a second wellhead are assumed to be the wellheads of any two adjacent wells of the cluster well to be drilled, the pumping unit is assumed to carry out production operation on the first wellhead, and the workover rig is assumed to carry out maintenance operation on the second wellhead. The allowable spacing between the first wellhead and the second wellhead is thereby determined based on assumed dimensional parameters of the various components comprised by the pumping unit of the first wellhead and dimensional parameters of the various components comprised by the workover rig of the second wellhead. That is, it is assumed that the well head distance in the cluster well is determined in the scenario of the repair operation of the workover rig on the second well head when the pumping unit works on the first well head, so that the normal operation of the pumping unit on the first well head is not affected when the workover rig works on the second well head after the oil and gas well is drilled in the well site. Thereby avoiding the problem that the adjacent well cannot normally produce when the workover rig maintains the oil and gas well.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a flow chart of a method for determining wellhead spacing in a cluster well according to an embodiment of the present application;

fig. 2 is a schematic structural diagram of an oil pumping unit according to an embodiment of the present application;

FIG. 3 is a schematic structural view of a workover rig according to an embodiment of the present disclosure;

FIG. 4 is a horizontal projection view of the intersection of projections of a walking beam and a front guy line on a horizontal plane provided by an embodiment of the present application;

FIG. 5 is a vertical projection view of the intersection of projections of a walking beam and a front guy line on a horizontal plane provided by an embodiment of the present application;

FIG. 6 is a view of a horizontal projection of a walking beam and a front guy line on a horizontal plane without intersecting the projections provided by an embodiment of the present application;

FIG. 7 is a schematic diagram of a device for determining wellhead spacing in a cluster well according to an embodiment of the present application;

fig. 8 is a schematic structural diagram of a terminal according to an embodiment of the present application;

fig. 9 is a schematic structural diagram of a server according to an embodiment of the present application.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the following detailed description of the embodiments of the present application will be given with reference to the accompanying drawings.

FIG. 1 is a flowchart of a method for determining a wellhead spacing in a cluster well according to an embodiment of the present application. The method is applied to a server or a terminal, an execution subject of the method is not limited in the embodiment of the application, and the following embodiment takes the server as an execution subject to be described. Referring to fig. 1, the method for determining the wellhead spacing in a cluster well may include the following steps.

Step 101: the server obtains the size parameters of all components included in the oil pumping unit and the size parameters of all components included in the workover rig, the oil pumping unit is used for operating the first wellhead, the workover rig is used for operating the second wellhead, and the first wellhead and the second wellhead are the wellheads of two adjacent wells of the cluster well to be drilled.

Fig. 2 is a schematic structural diagram of an oil pumping unit according to an embodiment of the present application. Referring to fig. 2, pumping unit 200 may include various components including a walking beam 201, a bracket 202, a base 203, a horsehead 204, and a rope hanger 205. The base 203 is the foundation of the pumping unit, and the bracket 202 is hoisted on the base 203. The walking beam 201 is hung on the bracket 202, and the walking beam 201 and the bracket 202 intersect at a point, which is called an intersection point. The horsehead 204 is installed to walking beam 201 front end, installs the rope hanger 205 on the horsehead 204.

The dimensional parameters of the various components included in the pumping unit 200 may specifically be: total arm length L of walking beam 201 and forearm length L of walking beam 201 ₁ Height H of stand 202 ₁ The width W of the pumping unit base 203, and the maximum angle beta of the walking beam 201 with the horizontal plane. Wherein the forearm length L of the walking beam 201 ₁ Is the distance from the horsehead 204 of the intersection of the boom 202 and the walking beam 201.

In addition, during operation of the pumping unit 200, the walking beam 201 can swing based on the intersection point where the walking beam 201 and the bracket 202 meet. In order to calculate the maximum value of the first wellhead spacing subsequently, in an embodiment of the present application, when the deflection angle of the walking beam 201 is the largest and the rope hanger is the farthest from the wellhead, the deflection angle of the walking beam 201 from the horizontal position at this point is taken as β.

Fig. 3 is a schematic structural diagram of a workover rig according to an embodiment of the present application. Referring to fig. 3, a workover rig 300 may include various components including a derrick 301, a ground anchor 302, and a front guy line 303. The front guy line 303 and the derrick 301 of the workover rig 300 are fixed through a ground anchor, one end of the front guy line 303 is fixedly connected with the ground anchor 302, and the other end of the front guy line 303 is connected with the top end of the derrick 301.

The dimensional parameters of the various components comprised by the workover rig are in particular: height H of derrick 301 ₂ Distance M from center of anchor 302 of front guy line 303 to wellhead of workover rig 300 operation ₁ Distance M from the front guy line 303 ₂ The distance of opening of the front guy line 303 is the distance between the two ground anchors connected to the front guy line.

It should be noted that the embodiment of the present application is applied to the scenario of the drilling well site to be developed, so the first wellhead and the second wellhead mentioned in the step 101 are assumed to be the first wellhead and the second wellhead, and the first wellhead and the second wellhead are assumed to be the wellheads of any two adjacent wells of the cluster well to be drilled. Thus, further assume that the pumping unit performs production operations on a first wellhead in the drilling well site and that the workover rig performs maintenance operations on a second wellhead.

Step 102: the server determines a first wellhead spacing based on the dimensional parameters of each component included in the pumping unit and the dimensional parameters of each component included in the workover rig, wherein the first wellhead spacing is: when the projection of the front guy rope included by the pumping unit and the front guy rope included by the workover rig are intersected on the horizontal plane, and the height of the beam at the intersection point on the vertical plane is lower than the height of the front guy rope at the intersection point on the vertical plane, the allowable distance between the first wellhead and the second wellhead is reduced.

In a scene based on the fact that projections of a beam included in the oil pumping unit and a front guy rope included in the workover rig on a horizontal plane are intersected, and the height of the beam at the intersection point on a vertical plane is lower than the height of the front guy rope at the intersection point on the vertical plane, normal operation of the oil pumping unit on a first wellhead is not affected when the workover rig maintains a second wellhead. Therefore, if the wellhead spacing of the adjacent oil wells meets the first wellhead spacing, the problem that the adjacent wells cannot normally produce when the workover rig maintains the oil and gas wells can be avoided.

In one possible implementation, the server determines the first wellhead spacing based on a distance of a kick-off of the front guy line, a distance of a ground anchor center of the front guy line to a wellhead of a workover rig operation, a stand height of the pumping unit, a derrick height of the workover rig, a maximum included angle of a beam of the pumping unit with a horizontal plane, a forearm length of the beam of the pumping unit.

Specifically, the above determination of the first wellhead spacing may be specifically expressed by the following formula:

wherein D is ₁ Is the first wellhead spacing, M ₂ Is the opening distance of the front guy rope, M ₁ Is the distance of the wellhead of workover rig operation, H ₁ Is the height of a bracket of the pumping unit, H ₂ Is the derrick height of the workover rig, H _fj Is the height H of the front guy line at the projection intersection point ₄ Height H of beam at intersection with projection ₃ The safety margin between the two is beta is the maximum included angle between the beam and the horizontal plane of the pumping unit, L ₁ Is the length of the front arm of the beam of the pumping unit.

The above formula is only an alternative implementation manner of determining the first wellhead spacing, and the embodiment of the present application may also determine the first wellhead spacing through other implementation manners, which are not further illustrated herein.

The formula is derived under the condition that the projection of the beam included in the pumping unit and the front guy rope included in the workover rig on the horizontal plane intersect, and the height of the beam at the intersection point on the vertical plane is lower than the height of the front guy rope at the intersection point on the vertical plane, and the specific derivation process is as follows.

Step a: determining a horizontal projection distance L between an intersection point of projection intersection of a walking beam included in the pumping unit and a front guy rope included in the workover rig on a horizontal plane and a first wellhead ₃ 。

Fig. 4 is a horizontal projection view of the intersection of projections of a walking beam and a front guy line on a horizontal plane provided by an embodiment of the present application. As shown in fig. 4, 1 is a hypothetical position of any drilling wellhead, 2 is a projection of a derrick of the workover rig on a horizontal plane, 3 is a projection of a ground anchor of a front guy line included in the workover rig on the horizontal plane, 4 is a projection of a walking beam included in the pumping unit on the horizontal plane, and 5 is a projection of the front guy line included in the workover rig on the horizontal plane.

The beam of the pumping unit has a projection length L on the horizontal plane, and the front guy rope has a projection length M on the horizontal plane ₂ The projection length of the ground anchor center of the front guy rope on the horizontal plane from the well head of the workover rig operation is M ₁ . The assumed first wellhead is spaced apart from the first wellhead by a distance D ₁ The horizontal projection distance between the intersection point of the projection intersection of the beam included by the pumping unit and the front guy rope included by the workover rig on the horizontal plane and the first wellhead is L ₃ 。

In one possible implementation manner, the horizontal projection distance of the intersection point from the first wellhead may be expressed by the following formula:

wherein L is ₃ Is the horizontal projection distance between the intersection point of the projection intersection of the beam included by the pumping unit and the front guy rope included by the workover rig on the horizontal plane and the first wellhead, D ₁ Is the spacing between the first wellhead and the first wellhead, M ₁ Is the projection length of the center of the ground anchor of the front guy rope on the horizontal plane from the well head of the workover rig operation, M ₂ Is the projection length of the opening distance of the front guy rope on the horizontal plane.

Step b: determining the height H of the walking beam on the vertical plane at the intersection point of the projections on the horizontal plane ₃ Height H of the front guy line on the vertical plane at the intersection point with the projection on the horizontal plane ₄ 。

Fig. 5 is a vertical projection view of the intersection of projections of a walking beam and a front guy line on a horizontal plane provided by an embodiment of the present application. As shown in fig. 5, 1 is the assumed position of the well drilling wellhead, 2 is the projection of the derrick of the workover rig on the vertical plane, 3 is the projection of the ground anchor of the front guy line included in the workover rig on the vertical plane, 4 is the projection of the walking beam included in the pumping unit on the vertical plane, and 5 is the projection of the front guy line included in the workover rig on the vertical plane.

The projection height of the bracket included in the pumping unit on the vertical plane is H ₁ The projection height of the derrick on the vertical surface of the workover rig is H ₂ Height H of the walking beam on the vertical plane at the intersection point of projection intersection on the horizontal plane ₃ Height H of front guy line on vertical plane at intersection point of projection intersection on horizontal plane ₄ Horizontal projection distance L between intersection point of projection intersection of beam included by oil engine and front guy rope included by workover rig on horizontal plane and first wellhead ₃ And the maximum included angle beta between the walking beam and the horizontal plane.

In one possible implementation, the height H of the walking beam on the vertical plane at the intersection point of the horizontal plane projection intersection is determined ₃ Specifically, the method can be represented by the following formula:

H ₃ ＝H ₁ +(L ₃ -L ₁ )×tanβ (3)

wherein H is ₃ Is the height of the walking beam on the vertical plane at the intersection point of the horizontal plane projection and the intersection point H ₁ Is the projection height of the bracket included in the pumping unit on the vertical plane, L ₃ Is the horizontal projection distance between the intersection point of the projection intersection of the beam included by the pumping unit and the front guy rope included by the workover rig on the horizontal plane and the first wellhead, L ₁ Is the projected length of the beam forearm on the horizontal plane, and beta is the maximum angle between the beam and the horizontal plane.

In one possible implementation, the height H of the front guy line at the projection intersection point is determined ₄ Specifically, the method can be represented by the following formula:

wherein H is ₄ Is the height of the front guy rope on the vertical plane at the intersection point of projection intersection on the horizontal plane, H ₂ Is the projection height of a derrick included in a workover rig on a vertical planeDegree, M ₁ Is the projection length L of the center of the ground anchor of the front guy rope on the horizontal plane from the distance of the ground anchor center to the wellhead of the workover rig ₃ The horizontal projection distance between the intersection point of the projection intersection of the beam included in the pumping unit and the front guy rope included in the workover rig on the horizontal plane and the first wellhead is set.

Step c: determining a first wellhead distance D ₁ 。

The beam of each component included in the pumping unit is the component with the largest height on the vertical plane, namely the beam is at the highest position in the pumping unit. The front guy rope in each assembly of the workover rig is connected to the top end of the derrick from the ground anchor, and the height of the front guy rope is gradually increased. If the height of the beam at the highest position in the pumping unit on the vertical plane is lower than the height of the front guy rope of the workover rig at the position of the beam, the working areas of the pumping unit and the workover rig are overlapped but do not interfere with each other. Namely, when the workover rig maintains the second wellhead, the production operation of the pumping unit on the first wellhead is not affected.

When the projection of the beam included in the pumping unit and the front guy rope included in the workover rig on the horizontal plane are intersected, if the projection intersection point is at the height H of the beam ₃ Height H of front guy rope lower than projection intersection point ₄ When the well is repaired, the production operation of the adjacent well, namely the first well is not affected under the condition of repairing the second well. I.e. H ₄ >H ₃ When the well is repaired at the second wellhead, the production operation of the first wellhead is not affected.

It should be noted that, in the actual process of production and maintenance construction, the production operation of the first wellhead is not affected under the condition of the workover operation of the second wellhead, and is not only required to be H ₄ >H ₃ The height H of the front guy line at the projection intersection point is also required ₄ Height H of beam at intersection with projection ₃ Safety margin H provided therebetween _fj To prevent other accidents from occurring. Namely H ₄ ≥H ₃ +H _fj Under the condition of repairing the second wellhead, the production operation of the adjacent well, namely the first wellhead, is not affected.

Based on the condition of the second wellhead workover operation, the production of the first wellhead is not affectedJudging conditions of industry: h ₄ ≥H ₃ +H _fj . Height H of the walking beam on the vertical plane at the intersection point of projection intersection on the horizontal plane of the formula (3) ₃ The height H of the front guy line on the vertical plane at the intersection point of the projection on the horizontal plane of the formula (4) ₄ Bringing into the above-mentioned judgment condition H ₄ ≥H ₃ +H _fj In the process of repairing the second wellhead, the horizontal projection distance L from the intersection point of the projection intersection of the beam included in the pumping unit and the front guy rope included in the workover rig on the horizontal plane to the first wellhead in the first wellhead generation operation scene is not influenced ₃ Specifically, the method can be expressed by the following formula:

wherein L is ₃ Is the horizontal projection distance between the intersection point of the projection intersection of the beam included by the pumping unit and the front guy rope included by the workover rig on the horizontal plane and the first wellhead, M ₁ Is the projection length of the center of the ground anchor of the front guy rope on the horizontal plane from the well head of the workover rig operation, H ₁ Is the projection height of the bracket included in the pumping unit on the vertical plane, H ₂ Is the projection height of the derrick on the vertical plane, and the height H of the front guy line at the projection intersection point ₄ Height H of beam at intersection with projection ₃ Safety margin H provided therebetween _fj Beta is the maximum angle between the walking beam and the horizontal plane.

L based on formula (2) ₃ Expression and formula (5) L ₃ Inequality alignment, the first wellhead spacing D may be determined ₁ . First wellhead spacing D ₁ Specifically, the method can be represented by the following formula:

wherein D is ₁ Is the first wellhead spacing, M ₁ Is the projection length of the center of the ground anchor of the front guy rope on the horizontal plane from the well head of the workover rig operation, H ₁ Is the projection height of the bracket included in the pumping unit on the vertical plane, H ₂ Is the projection height of the derrick on the vertical plane, and the height H of the front guy line at the projection intersection point ₄ Height H of beam at intersection with projection ₃ Safety margin H provided therebetween _fj Beta is the maximum angle between the walking beam and the horizontal plane.

For well sites to be developed, the most basic requirement is for oil and gas wells to be able to produce operations. Namely, in the developed drilling well site, the distance between the first well head and the second well head is required to be as follows: when the first wellhead is subjected to production operation, the production operation of the second wellhead is not affected. On the basis, the distance between the first wellhead and the second wellhead meets the following conditions: when the second wellhead is maintained, the production operation of the first wellhead is not affected. In one possible implementation, when the production operation is performed on the first wellhead, the interval between the first wellhead and the second wellhead is a wellhead interval threshold in a scenario where the production operation on the second wellhead is not affected. The implementation of the wellhead spacing threshold may be implemented by step 103.

Step 103: the server determines a wellhead spacing threshold based on the size parameters of each component included in the pumping unit, wherein the wellhead spacing threshold is an allowable spacing between a first wellhead and a second wellhead after the pumping unit is placed.

It should be noted that, when determining the wellhead spacing threshold in the embodiment of the present application, it is assumed that, in a drilling well site to be developed, the first wellhead and the second wellhead are simultaneously produced, that is, it is assumed that, after the pumping unit is simultaneously placed at the first wellhead and the second wellhead, the spacing between the first wellhead and the second wellhead is required.

After the pumping unit is placed at the first wellhead and the second wellhead, a safety margin W is arranged between the pumping unit placed at the first wellhead and the pumping unit placed at the second wellhead for facilitating equipment such as inspection, maintenance and repair of the pumping unit by workers _fj So as to facilitate the activities of the staff.

Thus, the server determines the wellhead spacing threshold based on the base width of the pumping unit, the base width of the pumping unit disposed at the second wellhead, and the safety distance.

In one possible implementation, the above-mentioned determining the wellhead spacing threshold value may be specifically expressed by the following formula:

D _min ＝W ₁ /2+W ₂ /2+W _fj (7)

wherein D is _min Is the wellhead spacing threshold, W ₁ Is the width W of the base of the pumping unit placed at the first wellhead ₂ Is the width W of the base of the pumping unit placed at the second wellhead _fj Is a safety margin.

Step 104: the server determines a target spacing between the first wellhead and the second wellhead based on the first wellhead spacing and a wellhead spacing threshold.

The wellhead spacing threshold is a minimum value of the calculated allowable spacing between the first wellhead and the second wellhead. Thus, in determining a target spacing between the first wellhead and the second wellhead, the target spacing is required to be greater than a wellhead spacing threshold.

In a scene that projections of a walking beam included by the oil pumping unit and a front guy rope included by the workover rig on a horizontal plane are intersected, the first wellhead distance is the maximum value of the calculated allowable distance between the first wellhead and the second wellhead. Thus, in determining the target spacing between the first wellhead and the second wellhead, the target spacing is required to be less than the first wellhead spacing.

Thus, in a scenario where projections of a beam included in the pumping unit and a front guy line included in the workover rig on a horizontal plane intersect, if the first wellhead spacing exceeds a wellhead spacing threshold, one spacing that exceeds the wellhead spacing threshold and is lower than the first wellhead spacing is determined as the target spacing. Namely D ₁ >D _min D is to ₁ -D _min The wellhead spacing therebetween is determined as the target spacing.

In a scene where projections of a walking beam included in the pumping unit and a front guy rope included in the workover rig on a horizontal plane intersect, if the first wellhead spacing is lower than a wellhead spacing threshold, namely D ₁ <D _min The server then determines the parameters of the dimensions of the various components comprised by the pumping unit and the parameters of the dimensions of the various components comprised by the workover rigDetermining a second wellhead pitch, the second wellhead pitch being: when projections of a walking beam included in the pumping unit and a front guy rope included in the workover rig on a horizontal plane are not intersected, critical spacing between the first wellhead and the second wellhead is achieved.

If the first wellhead spacing is lower than the wellhead spacing threshold, that is, in a scene that projections of a walking beam included in the pumping unit and a front guy rope included in the workover rig on a horizontal plane are intersected, the production operation of the first wellhead can be influenced when the second wellhead is maintained no matter how the spacing between the first wellhead and the second wellhead is set. Thus, the allowable spacing between the first wellhead and the second wellhead can only be in a scenario where the beam comprised by the pumping unit and the front guy line comprised by the workover rig are projected disjoint on a horizontal plane. At this time, the allowable interval between the first wellhead and the second wellhead is referred to as a second wellhead interval. And determining a spacing exceeding the second wellhead spacing as the target spacing.

The implementation manner of determining the second wellhead distance by the server is specifically as follows: and determining a second wellhead distance based on the gear opening distance of the front guy rope, the distance from the ground anchor center of the front guy rope to the wellhead of the workover rig operation, and the total arm length of the beam of the pumping unit.

Fig. 6 is a horizontal projection view of a walking beam and a front guy line in a horizontal plane without intersecting projections, according to an embodiment of the present application. As shown in fig. 4, 1 is the assumed position of the well drilling wellhead, 2 is the projection of the derrick of the workover rig on the horizontal plane, 3 is the projection of the ground anchor of the front guy line comprised by the workover rig on the horizontal plane, 4 is the projection of the walking beam comprised by the pumping unit on the horizontal plane, and 5 is the projection of the front guy line comprised by the workover rig on the horizontal plane.

The beam of the pumping unit has a projection length L on the horizontal plane, and the front guy rope has a projection length M on the horizontal plane ₂ The projection length of the ground anchor center of the front guy rope on the horizontal plane from the well head of the workover rig operation is M ₁ . The assumed first wellhead is spaced apart from the first wellhead by a distance D ₂ The horizontal projection distance between the intersection point of the projection intersection of the beam included by the pumping unit and the front guy rope included by the workover rig on the horizontal plane and the first wellhead is L ₃ 。

In one possible implementation, the second wellhead spacing may be expressed by the following formula:

wherein D is ₂ Is the spacing between the first wellhead and the first wellhead, L is the total length of the projection of the beam plane comprised by the pumping unit, M ₁ Is the projection length of the center of the ground anchor of the front guy rope on the horizontal plane from the well head of the workover rig operation, M ₂ Is the projection length of the opening distance of the front guy rope on the horizontal plane.

One spacing exceeding the second wellhead spacing is determined as the target spacing.

Steps 102 to 104 are specifically described below by way of specific examples for ease of understanding. For example, the pumping unit is a CYJY10-6-53HF compound balance pumping unit, the total arm length L of a beam included in the pumping unit is 12.2m, the maximum included angle beta between the beam and the horizontal plane of the pumping unit is 28.35 degrees, and the support height H ₁ 8.2m, base width W ₁ Length L of forearm of walking beam of 2.7m ₁ 5.9m.

Workover rig type 60 ton workover rig with high derrick H ₂ 18M, the center distance M between the ground anchors of the front guy rope and the wellhead ₁ 22M, a front guy rope gear opening distance M ₂ 20m.

A safety margin W is arranged between the pumping unit placed at the first wellhead and the pumping unit placed at the second wellhead _fj Height H of front guy line at projection intersection point of 1.3m ₄ Height H of beam at intersection with projection ₃ Safety margin H provided therebetween _fj 1m.

The server determines a first wellhead spacing based on the dimensional parameters of each component included in the pumping unit and the dimensional parameters of each component included in the workover rig:

the server determines a wellhead spacing threshold based on dimensional parameters of each component included in the pumping unit:

D _min ＝W ₁ /2+W ₂ /2+W _fj ＝2.7+1.3＝4m

comparing the first wellhead spacing to a wellhead spacing threshold: d (D) ₁ >D _min Will D ₁ -D _min The wellhead spacing therebetween is determined as the target spacing.

The server determines a second wellhead spacing based on the dimensional parameters of each component included in the pumping unit and the dimensional parameters of each component included in the workover rig:

in a scene that a beam included in the pumping unit and a front guy rope included in the workover rig are projected and intersected on a horizontal plane, a target distance D is taken ₁ -D _min The wellhead spacing between them, i.e. 4m < D _Wellhead ≤4.7m。

In a scene that a beam included in the pumping unit and a front guy rope included in the workover rig are projected and disjoint on a horizontal plane, the target distance is larger than D ₂ Well head spacing of (D) _Wellhead ＞5.5m。

The method for determining the wellhead distance in the cluster well, which is provided by the embodiment of the application, can be applied to a cluster well drilling well site to be developed, and a standardized method is provided for reasonably determining the distance between oil and gas wells in the well site, so that the later development and maintenance of the oil well can be conveniently ensured.

In addition, the method for determining the wellhead distance in the cluster well provided by the embodiment of the application can also be applied to the developed cluster well drilling well sites, and when the production operation is carried out on the oil gas well and the maintenance operation is carried out on the adjacent oil well, in order to avoid the problem that the adjacent well cannot be produced normally when the workover rig carries out the maintenance operation on the oil gas well, the method provided by the embodiment of the application is used for quantitatively calculating the necessary size parameters of the required workover rig including components, so that the basis is provided for optimizing the workover rig.

In the application scenario of the second developed cluster well drilling well site, the method provided by the embodiment of the application can quantitatively calculate the range of the derrick height included in the workover rig of the second wellhead. Preferably, the value in the derrick height range included in the second wellhead workover rig is quantitatively calculated, and normal production operation of the first wellhead is not affected when maintenance operation is performed on the second wellhead.

The specific deduction process of the formula for calculating the derrick height range included in the workover rig of the second wellhead is as follows: deforming the formula (1) in the step 102, so as to obtain a specific expression of the height range of the well frame as follows:

wherein H is ₂ Is the derrick height of the workover rig, H ₁ Is the height of a bracket of the pumping unit, D ₁ Is the first wellhead spacing, M ₂ Is the opening distance of the front guy rope, M ₁ Is the distance of the wellhead of workover rig operation, H _fj Is the height H of the front guy line at the projection intersection point ₄ Height H of beam at intersection with projection ₃ The safety margin between the two is beta is the maximum included angle between the beam and the horizontal plane of the pumping unit, L ₁ Is the length of the front arm of the beam of the pumping unit.

In the application scene of the developed cluster well drilling well site, when the second wellhead is required to be maintained, the derrick height included in the preferred workover rig is required to meet the formula (9), and at the moment, when the workover rig maintains the second wellhead, the normal production operation of the pumping unit on the first wellhead is not influenced.

All the above optional technical solutions may be combined according to any choice to form an optional embodiment of the present application, and the embodiments of the present application will not be described in detail.

In summary, the embodiment of the application is applied to a cluster well site to be developed, and before drilling an oil and gas well in the well site, a first wellhead and a second wellhead are assumed to be the wellheads of any two adjacent wells of the cluster well to be drilled, and the pumping unit is assumed to perform production operation on the first wellhead, and the workover rig is assumed to perform maintenance operation on the second wellhead. The allowable spacing between the first wellhead and the second wellhead is thereby determined based on assumed dimensional parameters of the various components comprised by the pumping unit of the first wellhead and dimensional parameters of the various components comprised by the workover rig of the second wellhead. That is, it is assumed that in the scenario of the workover rig repairing the second wellhead when the pumping unit works on the first wellhead, the wellhead distance in the cluster well is determined, so that after the oil and gas well is drilled in the well site, the second wellhead repairing operation of the workover rig does not affect the normal work of the pumping unit on the first wellhead. Thereby avoiding the problem that the adjacent well cannot normally produce when the workover rig maintains the oil and gas well.

Fig. 7 is a schematic structural diagram of a device for determining a wellhead distance in a cluster well according to an embodiment of the present application. As shown in fig. 7, the apparatus 700 for determining wellhead spacing in a cluster well may include the following modules.

The obtaining module 701 is configured to obtain a size parameter of each component included in the pumping unit and a size parameter of each component included in the workover rig, where the pumping unit is configured to perform operation on a first wellhead, and the workover rig is configured to perform operation on a second wellhead, where the first wellhead and the second wellhead are wellheads of two adjacent wells to be drilled;

a determining module 702, configured to determine a first wellhead spacing based on a dimensional parameter of each component included in the pumping unit and a dimensional parameter of each component included in the workover rig, where the first wellhead spacing is: when the projection of the front guy rope included in the pumping unit and the front guy rope included in the workover rig are intersected on the horizontal plane, and the height of the walking beam at the intersection point on the vertical plane is lower than the height of the front guy rope at the intersection point on the vertical plane, the allowable distance between the first wellhead and the second wellhead is reduced;

the determining module 702 is further configured to determine a wellhead spacing threshold, which is an allowable spacing between the first wellhead and the second wellhead after the pumping unit is placed, based on a size parameter of each component included in the pumping unit;

The determining module 702 is further configured to determine a target spacing between the first wellhead and the second wellhead based on the first wellhead spacing and the wellhead spacing threshold.

Optionally, the determining module 702 is further configured to:

the first wellhead distance is determined based on the gear-opening distance of the front guy rope, the distance from the ground anchor center of the front guy rope to the wellhead of the workover rig, the support height of the pumping unit, the derrick height of the workover rig, the maximum included angle between the beam of the pumping unit and the horizontal plane, and the length of the forearm of the beam of the pumping unit.

Optionally, the determining module 702 is further configured to:

if the first wellhead spacing exceeds the wellhead spacing threshold, one spacing that exceeds the wellhead spacing threshold and is below the first wellhead spacing is determined to be the target spacing.

Optionally, the determining module 702 is further configured to:

if the first wellhead spacing is lower than the wellhead spacing threshold, determining a second wellhead spacing based on the dimensional parameters of each component included in the pumping unit and the dimensional parameters of each component included in the workover rig, the second wellhead spacing being: when projections of a walking beam included in the pumping unit and a front guy rope included in the workover rig on a horizontal plane are not intersected, critical spacing between a first wellhead and a second wellhead is reserved;

Optionally, the determining module 702 is further configured to:

and determining the distance between the second wellhead based on the gear opening distance of the front guy rope, the distance between the ground anchor center of the front guy rope and the second wellhead and the total arm length of the beam of the pumping unit.

Optionally, the determining module 702 is further configured to:

It should be noted that: the determining device for determining the wellhead pitch in a cluster well provided in the above embodiment is only exemplified by the division of the above functional modules when determining the wellhead pitch in a cluster well, and in practical application, the above functional allocation may be performed by different functional modules according to needs, i.e., the internal structure of the device is divided into different functional modules to perform all or part of the functions described above. In addition, the device for determining the wellhead distance in the cluster well provided in the above embodiment and the method embodiment for determining the wellhead distance in the cluster well belong to the same concept, and detailed implementation processes of the device are shown in the method embodiment, and are not repeated here.

Fig. 8 shows a schematic structural diagram of a terminal 800 according to an embodiment of the present application. The terminal 800 may be: a smart phone, a tablet computer, an MP3 player (Moving Picture Experts Group Audio Layer III, motion picture expert compression standard audio plane 3), an MP4 (Moving Picture Experts Group Audio Layer IV, motion picture expert compression standard audio plane 4) player, a notebook computer, or a desktop computer. Terminal 800 may also be referred to by other names of user devices, portable terminals, laptop terminals, desktop terminals, and the like.

In general, the terminal 800 includes: a processor 801 and a memory 802.

Processor 801 may include one or more processing cores, such as a 4-core processor, an 8-core processor, and the like. The processor 801 may be implemented in at least one hardware form of DSP (Digital Signal Processing ), FPGA (Field-Programmable Gate Array, field programmable gate array), PLA (Programmable Logic Array ). The processor 801 may also include a main processor, which is a processor for processing data in an awake state, also referred to as a CPU (Central Processing Unit ), and a coprocessor; a coprocessor is a low-power processor for processing data in a standby state. In some embodiments, the processor 801 may integrate a GPU (Graphics Processing Unit, image processor) for rendering and rendering of content required to be displayed by the display screen. In some embodiments, the processor 801 may also include an AI (Artificial Intelligence ) processor for processing computing operations related to machine learning.

Memory 802 may include one or more computer-readable storage media, which may be non-transitory. Memory 802 may also include high-speed random access memory, as well as non-volatile memory, such as one or more magnetic disk storage devices, flash memory storage devices. In some embodiments, a non-transitory computer readable storage medium in memory 802 is used to store at least one instruction for execution by processor 801 to implement the method of determining wellhead spacing in a cluster well provided by a method embodiment of the present application.

In some embodiments, the terminal 800 may further optionally include: a peripheral interface 803, and at least one peripheral. The processor 801, the memory 802, and the peripheral interface 803 may be connected by a bus or signal line. Individual peripheral devices may be connected to the peripheral device interface 803 by buses, signal lines, or a circuit board. Specifically, the peripheral device includes: at least one of radio frequency circuitry 804, a touch display 805, a camera 806, audio circuitry 807, a positioning component 808, and a power supply 809.

Peripheral interface 803 may be used to connect at least one Input/Output (I/O) related peripheral to processor 801 and memory 802. In some embodiments, processor 801, memory 802, and peripheral interface 803 are integrated on the same chip or circuit board; in some other embodiments, either or both of the processor 801, the memory 802, and the peripheral interface 803 may be implemented on separate chips or circuit boards, which is not limited in this embodiment.

The Radio Frequency circuit 804 is configured to receive and transmit RF (Radio Frequency) signals, also known as electromagnetic signals. The radio frequency circuit 804 communicates with a communication network and other communication devices via electromagnetic signals. The radio frequency circuit 804 converts an electrical signal into an electromagnetic signal for transmission, or converts a received electromagnetic signal into an electrical signal. Optionally, the radio frequency circuit 804 includes: antenna systems, RF transceivers, one or more amplifiers, tuners, oscillators, digital signal processors, codec chipsets, subscriber identity module cards, and so forth. The radio frequency circuitry 804 may communicate with other terminals via at least one wireless communication protocol. The wireless communication protocol includes, but is not limited to: metropolitan area networks, various generations of mobile communication networks (2G, 3G, 4G, and 5G), wireless local area networks, and/or WiFi (Wireless Fidelity ) networks. In some embodiments, the radio frequency circuit 804 may also include NFC (Near Field Communication ) related circuits, which the present application is not limited to.

The display 805 is used to display a UI (User Interface). The UI may include graphics, text, icons, video, and any combination thereof. When the display 805 is a touch display, the display 805 also has the ability to collect touch signals at or above the surface of the display 805. The touch signal may be input as a control signal to the processor 801 for processing. At this time, the display 805 may also be used to provide virtual buttons and/or virtual keyboards, also referred to as soft buttons and/or soft keyboards. In some embodiments, the display 805 may be one, providing a front panel of the terminal 800; in other embodiments, the display 805 may be at least two, respectively disposed on different surfaces of the terminal 800 or in a folded design; in still other embodiments, the display 805 may be a flexible display disposed on a curved surface or a folded surface of the terminal 800. Even more, the display 805 may be arranged in an irregular pattern other than rectangular, i.e., a shaped screen. The display 805 may be made of LCD (Liquid Crystal Display ), OLED (Organic Light-Emitting Diode) or other materials.

The camera assembly 806 is used to capture images or video. Optionally, the camera assembly 806 includes a front camera and a rear camera. Typically, the front camera is disposed on the front panel of the terminal and the rear camera is disposed on the rear surface of the terminal. In some embodiments, the at least two rear cameras are any one of a main camera, a depth camera, a wide-angle camera and a tele camera, so as to realize that the main camera and the depth camera are fused to realize a background blurring function, and the main camera and the wide-angle camera are fused to realize a panoramic shooting and Virtual Reality (VR) shooting function or other fusion shooting functions. In some embodiments, the camera assembly 806 may also include a flash. The flash lamp can be a single-color temperature flash lamp or a double-color temperature flash lamp. The dual-color temperature flash lamp refers to a combination of a warm light flash lamp and a cold light flash lamp, and can be used for light compensation under different color temperatures.

Audio circuitry 807 may include a microphone and a speaker. The microphone is used for collecting sound waves of users and the environment, converting the sound waves into electric signals, inputting the electric signals to the processor 801 for processing, or inputting the electric signals to the radio frequency circuit 804 for voice communication. For stereo acquisition or noise reduction purposes, a plurality of microphones may be respectively disposed at different portions of the terminal 800. The microphone may also be an array microphone or an omni-directional pickup microphone. The speaker is used to convert electrical signals from the processor 801 or the radio frequency circuit 804 into sound waves. The speaker may be a conventional thin film speaker or a piezoelectric ceramic speaker. When the speaker is a piezoelectric ceramic speaker, not only the electric signal can be converted into a sound wave audible to humans, but also the electric signal can be converted into a sound wave inaudible to humans for ranging and other purposes. In some embodiments, audio circuit 807 may also include a headphone jack.

The location component 808 is utilized to locate the current geographic location of the terminal 800 to enable navigation or LBS (Location Based Service, location-based services). The positioning component 808 may be a positioning component based on the United states GPS (Global Positioning System ), the Beidou system of China, the Granati system of Russia, or the Galileo system of the European Union.

A power supply 809 is used to power the various components in the terminal 800. The power supply 809 may be an alternating current, direct current, disposable battery, or rechargeable battery. When the power supply 809 includes a rechargeable battery, the rechargeable battery may support wired or wireless charging. The rechargeable battery may also be used to support fast charge technology.

In some embodiments, the terminal 800 also includes one or more sensors 810. The one or more sensors 810 include, but are not limited to: acceleration sensor 811, gyroscope sensor 812, pressure sensor 813, fingerprint sensor 814, optical sensor 815, and proximity sensor 816.

The acceleration sensor 811 can detect the magnitudes of accelerations on three coordinate axes of the coordinate system established with the terminal 800. For example, the acceleration sensor 811 may be used to detect components of gravitational acceleration in three coordinate axes. The processor 801 may control the touch display screen 805 to display a user interface in a landscape view or a portrait view according to the gravitational acceleration signal acquired by the acceleration sensor 811. Acceleration sensor 811 may also be used for the acquisition of motion data of a game or user.

The gyro sensor 812 may detect a body direction and a rotation angle of the terminal 800, and the gyro sensor 812 may collect a 3D motion of the user to the terminal 800 in cooperation with the acceleration sensor 811. The processor 801 may implement the following functions based on the data collected by the gyro sensor 812: motion sensing (e.g., changing UI according to a tilting operation by a user), image stabilization at shooting, game control, and inertial navigation.

The pressure sensor 813 may be disposed at a side frame of the terminal 800 and/or at a lower layer of the touch display 805. When the pressure sensor 813 is disposed on a side frame of the terminal 800, a grip signal of the terminal 800 by a user may be detected, and the processor 801 performs left-right hand recognition or shortcut operation according to the grip signal collected by the pressure sensor 813. When the pressure sensor 813 is disposed at the lower layer of the touch display screen 805, the processor 801 controls the operability control on the UI interface according to the pressure operation of the user on the touch display screen 805. The operability controls include at least one of a button control, a scroll bar control, an icon control, and a menu control.

The fingerprint sensor 814 is used to collect a fingerprint of a user, and the processor 801 identifies the identity of the user based on the fingerprint collected by the fingerprint sensor 814, or the fingerprint sensor 814 identifies the identity of the user based on the collected fingerprint. Upon recognizing that the user's identity is a trusted identity, the processor 801 authorizes the user to perform relevant sensitive operations including unlocking the screen, viewing encrypted information, downloading software, paying for and changing settings, etc. The fingerprint sensor 814 may be provided on the front, back, or side of the terminal 800. When a physical key or vendor Logo is provided on the terminal 800, the fingerprint sensor 814 may be integrated with the physical key or vendor Logo.

The optical sensor 815 is used to collect the ambient light intensity. In one embodiment, the processor 801 may control the display brightness of the touch display screen 805 based on the intensity of ambient light collected by the optical sensor 815. Specifically, when the intensity of the ambient light is high, the display brightness of the touch display screen 805 is turned up; when the ambient light intensity is low, the display brightness of the touch display screen 805 is turned down. In another embodiment, the processor 801 may also dynamically adjust the shooting parameters of the camera module 806 based on the ambient light intensity collected by the optical sensor 815.

A proximity sensor 816, also referred to as a distance sensor, is typically provided on the front panel of the terminal 800. The proximity sensor 816 is used to collect the distance between the user and the front of the terminal 800. In one embodiment, when the proximity sensor 816 detects that the distance between the user and the front of the terminal 800 gradually decreases, the processor 801 controls the touch display 805 to switch from the bright screen state to the off screen state; when the proximity sensor 816 detects that the distance between the user and the front surface of the terminal 800 gradually increases, the processor 801 controls the touch display 805 to switch from the off-screen state to the on-screen state.

Those skilled in the art will appreciate that the structure shown in fig. 8 is not limiting and that more or fewer components than shown may be included or certain components may be combined or a different arrangement of components may be employed.

The embodiment of the application also provides a non-transitory computer readable storage medium, which enables the terminal to execute the method for determining the wellhead distance in the cluster well provided by the embodiment above when the instructions in the storage medium are executed by the processor of the terminal.

The embodiment of the application also provides a computer program product containing instructions, which when run on a terminal, causes the terminal to execute the method for determining the wellhead spacing in the cluster well provided by the embodiment.

Fig. 9 is a schematic structural diagram of a server according to an embodiment of the present application. The server may be a server in a backend server cluster. Specifically, the present application relates to a method for manufacturing a semiconductor device.

The server 900 includes a Central Processing Unit (CPU) 901, a system memory 904 including a Random Access Memory (RAM) 902 and a Read Only Memory (ROM) 903, and a system bus 905 connecting the system memory 904 and the central processing unit 901. The server 900 also includes a basic input/output system (I/O system) 906, and a mass storage device 907 for storing an operating system 913, application programs 914, and other program modules 915, which facilitate the transfer of information between the various devices within the computer.

The basic input/output system 906 includes a display 908 for displaying information and an input device 909, such as a mouse, keyboard, or the like, for user input of information. Wherein both the display 908 and the input device 909 are coupled to the central processing unit 901 via an input output controller 910 coupled to the system bus 905. The basic input/output system 906 may also include an input/output controller 910 for receiving and processing input from a number of other devices, such as a keyboard, mouse, or electronic stylus. Similarly, the input-output controller 910 also provides output to a display screen, a printer, or other type of output device.

The mass storage device 907 is connected to the central processing unit 901 through a mass storage controller (not shown) connected to the system bus 905. The mass storage device 907 and its associated computer-readable media provide non-volatile storage for the server 900. That is, the mass storage device 907 may include a computer-readable medium (not shown), such as a hard disk or CD-ROM drive.

Computer readable media may include computer storage media and communication media without loss of generality. Computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data. Computer storage media includes RAM, ROM, EPROM, EEPROM, flash memory or other solid state memory technology, CD-ROM, DVD or other optical storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices. Of course, those skilled in the art will recognize that computer storage media are not limited to the ones described above. The system memory 904 and mass storage device 907 described above may be collectively referred to as memory.

According to various embodiments of the application, the server 900 may also operate by a remote computer connected to the network through a network, such as the Internet. I.e., the server 900 may be connected to the network 912 through a network interface unit 911 coupled to the system bus 905, or other types of networks or remote computer systems (not shown) may be coupled using the network interface unit 911.

The memory also includes one or more programs, one or more programs stored in the memory and configured to be executed by the CPU. The one or more programs include methods for performing the determination of wellhead spacing in a cluster well provided by embodiments of the application as described below.

The embodiment of the application also provides a non-transitory computer readable storage medium, which enables a server to execute the method for determining the wellhead distance in the cluster well provided by the embodiment when the instructions in the storage medium are executed by the processor of the server.

The embodiment of the application also provides a computer program product containing instructions, which when run on a server, cause the server to execute the method for determining the wellhead spacing in the cluster well provided by the embodiment.

It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program for instructing relevant hardware, where the program may be stored in a computer readable storage medium, and the storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.

The foregoing description of the preferred embodiments of the present application is not intended to limit the embodiments of the present application, but is intended to cover any modifications, equivalents, improvements or alternatives falling within the spirit and principles of the embodiments of the present application.

Claims

1. A method for determining wellhead spacing in a cluster well, the method comprising:

2. The method of claim 1, wherein the determining a first wellhead spacing based on the dimensional parameters of the various components included in the pumping unit and the dimensional parameters of the various components included in the workover rig comprises:

3. The method of claim 1, wherein the determining a target spacing between a first wellhead and a second wellhead based on the first wellhead spacing and the wellhead spacing threshold comprises:

4. The method of claim 1, wherein the determining a target spacing between a first wellhead and a second wellhead based on the first wellhead spacing and the wellhead spacing threshold comprises:

5. The method of claim 4, wherein the determining a second wellhead spacing based on the dimensional parameters of the components included in the pumping unit and the dimensional parameters of the components included in the workover rig comprises:

6. The method of claim 1, wherein the determining a wellhead spacing threshold based on dimensional parameters of individual components included in the pumping unit comprises:

7. A device for determining wellhead spacing in a cluster well, the device comprising:

8. The apparatus of claim 7, wherein the determination module is further to:

9. The apparatus of claim 7, wherein the determination module is further to:

10. The apparatus of claim 7, wherein the determination module is further to:

11. The apparatus of claim 10, wherein the determination module is further to:

12. The apparatus of claim 7, wherein the determination module is further to:

13. A computer readable storage medium having stored thereon instructions which, when executed by a processor, implement the steps of the method of any of the preceding claims 1 to 6.