CN112096331A - Explosion buckle loosening high-pressure circulating system, control method and application - Google Patents
Explosion buckle loosening high-pressure circulating system, control method and application Download PDFInfo
- Publication number
- CN112096331A CN112096331A CN202010797718.3A CN202010797718A CN112096331A CN 112096331 A CN112096331 A CN 112096331A CN 202010797718 A CN202010797718 A CN 202010797718A CN 112096331 A CN112096331 A CN 112096331A
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- Prior art keywords
- cable
- pressure
- circulating
- explosion
- rubber block
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
- E21B7/046—Directional drilling horizontal drilling
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
- E21B17/042—Threaded
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B31/00—Fishing for or freeing objects in boreholes or wells
- E21B31/107—Fishing for or freeing objects in boreholes or wells using impact means for releasing stuck parts, e.g. jars
- E21B31/1075—Fishing for or freeing objects in boreholes or wells using impact means for releasing stuck parts, e.g. jars using explosives
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
Abstract
The invention belongs to the technical field of horizontal well explosion loosening equipment, and discloses an explosion loosening high-pressure circulating system, a control method and application, wherein the system is provided with a circulating device body, a compression screw, a sealing rubber block, a cable processing device and a cable through hole; the circulating device body adopts a structure with a large middle part and small two ends; the compression screw adopts a two-petal symmetrical structure, a convex screw thread-preventing dislocation key is arranged on the outer side of one petal of the compression screw, and a groove matched with the screw thread-preventing dislocation key is arranged on the other petal; the lower bottom surface of the sealing rubber block is circular and is in plane contact with the bottom surface of the through hole, and the upper surface of the sealing rubber block is circular arc-shaped and is in circular arc contact with the bottom surface of the compression screw. The explosion tripping high-pressure circulating system provided by the invention can not leak when the circulating pressure of a wellhead is 25Mpa, and the effect of pushing explosion tripping and releasing operation by a horizontal well cable is achieved; the circulating device can increase the diameter and the length of the cable sealing through hole; the tensile strength of the circulating device is higher and reaches 400T from the original 350T.
Description
Technical Field
The invention belongs to the technical field of horizontal well explosion loosening equipment, and particularly relates to an explosion loosening high-pressure circulating system, a control method and application.
Background
Currently, horizontal well drilling is the basic mode of shale gas development. Due to the poor stability of the shale stratum well wall, the well is easy to collapse in the drilling process, so that the drilling accident is caused. The drilling method has low self-stuck-releasing success rate, long time consumption and long construction period by moving drilling tools up and down, shocking and the like. The conventional cable pushing explosion buckle releasing process is characterized in that explosion buckle releasing operation is completed by naturally placing the weight of an explosion buckle releasing tool string to an explosion buckle releasing point, and the conventional cable pushing explosion buckle releasing process can only be used in a well with the temperature of less than 70 degrees and cannot be used for cable pushing explosion buckle releasing and releasing operation in a well with the temperature of more than 70 degrees.
Through the above analysis, the problems and defects of the prior art are as follows:
(1) the automatic stuck releasing mode of moving a drilling tool up and down, shocking and the like in the stuck drill accident has low success rate, long time consumption and serious long construction period.
(2) The conventional cable pushing explosion tripping process can only be used in a well with the inclination of less than 70 degrees, and the well with the inclination of more than 70 degrees cannot perform cable pushing explosion tripping and releasing operation.
The difficulty in solving the above problems and defects is: without the high-pressure circulating device, most horizontal wells cannot be unlocked, and the first party only abandons the horizontal section and drills from a new window, so that the cost is high, and the period is delayed.
The significance of solving the problems and the defects is as follows: in the horizontal section propelling movement, the effect is fine, and is sealed effectual in housing screw department, and no mud leaks, once only propelling movement succeeds to the target layer.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides an explosion buckle loosening high-pressure circulating system, a control method and application.
The invention is realized in such a way that the explosion buckle-loosening high-pressure circulating system is provided with a circulating device body, a compression screw, a sealing rubber block, a cable processing device and a cable through hole;
the circulating device body adopts a structure with a large middle part and small two ends;
the compression screw is of a two-petal symmetrical structure, a convex screw thread-preventing dislocation key is arranged on the outer side of one petal of the compression screw, and a groove matched with the screw thread-preventing dislocation key is formed in the other petal.
The lower bottom surface of the sealing rubber block is circular and is in plane contact with the bottom surface of the through hole, and the upper surface of the sealing rubber block is arc-shaped and is in arc contact with the bottom surface of the compression screw.
Further, the cable processing device is provided with a cover plate, screws and copper pressing strips.
Further, the included angle between the cable via hole and the water hole of the circulating device body is 10 degrees
Furthermore, the screw thread preventing dislocation key is provided with two positioning keys for preventing the two pieces from moving left and right, and the groove is internally provided with two positioning holes.
Furthermore, the upper end of the compression screw is in a shape of a regular hexagon with the diameter of 24 mm.
Furthermore, the sealing rubber block is of a two-petal structure, and a rectangular concave-convex shape is arranged in the middle of the sealing rubber block.
Another object of the present invention is to provide a method for controlling the explosive release high-pressure circulation system, which includes: the two compression screws are matched with each other, and when the slurry is circulated under high pressure, the screws are locked to compress the sealant blocks; the middle of the sealing rubber block is in a rectangular convex-concave shape, so that the sealing rubber block is more tightly attached to the cable, and the cable is prevented from being damaged by slurry leakage; copper pressing strips are arranged above and below the processing device, and the damaged cable is processed after the cable is fixed and does not slide; the included angle between the cable via hole and the water hole of the circulating device body is 10 degrees.
The invention also aims to provide logging equipment provided with the explosive unscrewing high-pressure circulating system.
The invention also aims to provide a horizontal well logging blasting loosening method which uses the blasting loosening high-pressure circulating system.
Another object of the present invention is to provide a shale gas development method, which uses the explosive buckle-loosening high-pressure circulation system.
By combining all the technical schemes, the invention has the advantages and positive effects that: the circulating device can increase the diameter and the length of the cable sealing through hole, has higher tensile strength and can reach 400T; the two compression screws are matched with each other, so that the function of locking the screws can be achieved when the slurry is circulated at high pressure, and the high-pressure circulation screws are prevented from flying out to hurt people and equipment when the high-pressure circulation screws fail; the upper part of the screw is provided with a regular hexagonal shape with the diameter of 24mm, so that the screw can be conveniently screwed and unscrewed by a special tool; the bottom of the screw is in a circular arc shape, so that the sealing rubber block is better pressed, and the sealing effect is better; the middle of the sealing rubber block is in a rectangular convex-concave shape, so that the sealing rubber block is more tightly attached to the cable and plays a better sealing role; the upper part and the lower part of the processing device are provided with copper pressing strips, so that the cable cannot be injured again, and the injured cable is processed after the cable is fixed and does not slide; the contained angle between the cable via hole and the water hole of circulating device body is 10 degrees, is convenient for wear the cable to and along with the flow of mud, the cable impetus is better.
The explosion tripping high-pressure circulating system provided by the invention can not leak when the circulating pressure of a wellhead is 25Mpa, and the effect of pushing the explosion tripping and releasing operation by a horizontal well cable is achieved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments of the present application will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained from the drawings without creative efforts.
Fig. 1 is a schematic structural view of an explosion buckle releasing high-pressure circulation system according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of an a-a structure in fig. 1 according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a sealant block according to an embodiment of the present invention.
In the figure: 1. a circulation device body; 2. a compression screw; 3. sealing the rubber block; 4. a cable handling device; 5. the cable seals the via hole; 6. water holes; 7. and a pressure plate base.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Aiming at the problems in the prior art, the invention provides an explosion buckle-loosening high-pressure circulating system, a control method and application thereof, and the invention is described in detail below with reference to the accompanying drawings.
As shown in fig. 1 to 3, the explosion loosening high-pressure circulation system provided by the embodiment of the invention mainly includes a circulation device body 1, a compression screw 2, a sealing rubber block 3, a cable processing device 4, a cable sealing via hole 5, a water hole 6, and a pressure plate base 7.
The high-pressure circulating device body 1 adopts a design mode that the middle is large and the two ends are small. The middle has 2 advantages: 1. the middle outer diameter is 200mm, so that the diameter and the length of the cable sealing through hole 5 can be increased; 2. the tensile strength of the circulating device is higher and reaches 400T from the original 350T; meanwhile, the outer diameters of both sides of the high-pressure circulating device are 178mm as those of a conventional 5-1/2' drilling tool, so that the tightness of the hydraulic pliers is not influenced.
Design of the hold-down screw 2: the two-petal type symmetrical structure is adopted, and the mounting and dismounting are convenient. A bulge is arranged on one petal of the compression screw 2: 46mm, width: 14mm, height 6.14mm prevent screw thread dislocation key. The screw thread preventing dislocation key is provided with two positioning keys to prevent the two petals from moving left and right. The other lobe has a groove that mates with the raised key. The groove is provided with two fixed flaps which move up and down to cause the screw thread to be staggered. Two positioning holes are arranged in the groove. The two screws are mutually matched, and the compression screw 2 is locked when the high-pressure circulating slurry is circulated, so that the high-pressure circulating compression screw 2 is prevented from flying out to hurt people and equipment when the high-pressure circulating compression screw is in failure; the upper part of the compression screw 2 is provided with a regular hexagonal shape with the diameter of 24mm, so that the special tool can be conveniently used for screwing and unscrewing; the bottom of the compression screw 2 is arc-shaped, so that the sealing rubber block is better pressed, and the sealing effect is better.
Design of the sealant block 3: increasing the length of the sealant block 3: the length is increased from the original 150mm to 200 mm; increasing the area of the sealant block 3: the diameter is increased from the original 35mm to 40 mm; the lower bottom surface of the sealing rubber block 3 is circular and is contacted with the plane of the bottom surface of the through hole, the upper surface of the sealing rubber block is circular and is contacted with the circular arc of the bottom surface of the compression screw 2; the sealing rubber block 3 is 2-segment type and is convenient to assemble and disassemble; adopt rectangle convex-concave type in the middle of the joint sealant piece 3, make joint sealant piece 3 more paste tight cable, better play sealed effect.
Cable processing device 4: consists of a cover plate, a screw and a copper pressing strip. The cable turns round, jump silk or unusual circumstances such as disconnected silk appear beating, cable processing apparatus for the cable on the circulating device compresses tightly on the body, and cable processing apparatus 4 is the copper layering from top to bottom, can not make the cable be injured once more, fixes the cable and does not slide the back, goes to handle injured cable again.
Design of cable sealing via 5: the contained angle between the sealed via hole of cable 5 and the eye of circulating device body 1 is 10 degrees, is convenient for wear the cable to and along with the flow of mud, the cable impetus is better.
The explosion tripping high-pressure circulating system does not leak when the circulating pressure of a wellhead is 25Mpa, and the effect of pushing the explosion tripping and releasing operation by a horizontal well cable is achieved.
The device of the invention is already applied to production in large scale, and has good effect
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The above description is only for the purpose of illustrating the present invention and the appended claims are not to be construed as limiting the scope of the invention, which is intended to cover all modifications, equivalents and improvements that are within the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. The high-pressure circulating system for the explosive release buckle is characterized by being provided with a circulating device body and a compression screw;
the circulating device body adopts a structure with a large middle part and small two ends;
the compression screw is of a two-petal symmetrical structure, a convex screw thread-preventing dislocation key is arranged on the outer side of one petal of the compression screw, and a groove matched with the screw thread-preventing dislocation key is formed in the other petal;
the lower bottom surface of the sealing rubber block is circular and is in plane contact with the bottom surface of the through hole, and the upper surface of the sealing rubber block is arc-shaped and is in arc contact with the bottom surface of the compression screw.
2. An explosive release high pressure cycle system according to claim 1, wherein the cable handling device is provided with a cover plate, screws and copper battens.
3. The explosive release high pressure circulation system of claim 1, wherein the angle between the cable via and the water eye of the circulation device body is 10 degrees.
4. The explosive release high pressure circulation system according to claim 1, wherein the screw thread dislocation preventing key is provided with two positioning keys for preventing the two pieces from moving left and right, and the groove is provided with two positioning holes.
5. The explosive release high pressure circulation system of claim 1, wherein the upper end of the compression screw is in a regular hexagonal shape with a diameter of 24 mm.
6. The explosive release high pressure circulation system of claim 1, wherein the sealant block is a two-piece structure, and a rectangular concave-convex shape is arranged in the middle of the sealant block.
7. A control method of the explosive release high-pressure circulating system according to any one of claims 1 to 6, wherein the control method of the explosive release high-pressure circulating system comprises the following steps: the two compression screws are matched with each other, and when the slurry is circulated under high pressure, the screws are locked to compress the sealant blocks; the middle of the sealing rubber block is in a rectangular convex-concave shape, so that the sealing rubber block is more tightly attached to the cable; copper pressing strips are arranged above and below the processing device, and the damaged cable is processed after the cable is fixed and does not slide; the included angle between the cable via hole and the water hole of the circulating device body is 10 degrees.
8. A drilling equipment equipped with the explosive unscrewing high-pressure circulating system as claimed in any one of claims 1 to 6.
9. The horizontal well logging blasting loosening method is characterized by using the blasting loosening high-pressure circulating system according to any one of claims 1-6.
10. A shale gas development method, characterized in that the shale gas development method uses the explosion buckle-loosening high-pressure circulation system of any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010797718.3A CN112096331A (en) | 2020-08-10 | 2020-08-10 | Explosion buckle loosening high-pressure circulating system, control method and application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010797718.3A CN112096331A (en) | 2020-08-10 | 2020-08-10 | Explosion buckle loosening high-pressure circulating system, control method and application |
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| Publication Number | Publication Date |
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| CN112096331A true CN112096331A (en) | 2020-12-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010797718.3A Pending CN112096331A (en) | 2020-08-10 | 2020-08-10 | Explosion buckle loosening high-pressure circulating system, control method and application |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2601553A1 (en) * | 2006-09-12 | 2008-03-12 | Baker Hughes Incorporated | Hi-dielectric debris seal for pothead interface |
| CN103352688A (en) * | 2013-07-19 | 2013-10-16 | 中国石油集团长城钻探工程有限公司 | Drilling tool bypass process unit |
| CN103775750A (en) * | 2012-10-23 | 2014-05-07 | 中国石油天然气集团公司 | Coiled tubing cable-penetrating sealing device |
| CN204615279U (en) * | 2015-06-26 | 2015-09-02 | 湖南神通光电科技有限责任公司 | Wire feed-through device |
| CN110005364A (en) * | 2018-12-11 | 2019-07-12 | 中国石油天然气集团有限公司 | A kind of logging cable rotary sealing appts and its operating method |
-
2020
- 2020-08-10 CN CN202010797718.3A patent/CN112096331A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2601553A1 (en) * | 2006-09-12 | 2008-03-12 | Baker Hughes Incorporated | Hi-dielectric debris seal for pothead interface |
| CN103775750A (en) * | 2012-10-23 | 2014-05-07 | 中国石油天然气集团公司 | Coiled tubing cable-penetrating sealing device |
| CN103352688A (en) * | 2013-07-19 | 2013-10-16 | 中国石油集团长城钻探工程有限公司 | Drilling tool bypass process unit |
| CN204615279U (en) * | 2015-06-26 | 2015-09-02 | 湖南神通光电科技有限责任公司 | Wire feed-through device |
| CN110005364A (en) * | 2018-12-11 | 2019-07-12 | 中国石油天然气集团有限公司 | A kind of logging cable rotary sealing appts and its operating method |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20220126 Address after: 100029 Chaoyang District, Beijing Hui Xin Street six, Twelfth level. Applicant after: SINOPEC OILFIELD SERVICE Corp. Applicant after: Sinopec Jingwei Co.,Ltd. Applicant after: Southwest measurement and control company of Sinopec Jingwei Co.,Ltd. Address before: 100029 Chaoyang District, Beijing Hui Xin Street six, Twelfth level. Applicant before: SINOPEC OILFIELD SERVICE Corp. Applicant before: LOGGING BRANCH, SINOPEC SOUTHWEST PETROLEUM ENGINEERING CO.,LTD. |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201218 |