CN203547716U - Measurement experiment device for drill column clamping point of large-displacement well - Google Patents
Measurement experiment device for drill column clamping point of large-displacement well Download PDFInfo
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- CN203547716U CN203547716U CN201320746471.8U CN201320746471U CN203547716U CN 203547716 U CN203547716 U CN 203547716U CN 201320746471 U CN201320746471 U CN 201320746471U CN 203547716 U CN203547716 U CN 203547716U
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- drill string
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- wellbore hole
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- 238000005259 measurement Methods 0.000 title abstract description 8
- 238000002474 experimental method Methods 0.000 title abstract description 6
- 238000006073 displacement reaction Methods 0.000 title abstract 4
- 238000004088 simulation Methods 0.000 claims abstract description 79
- 238000001514 detection method Methods 0.000 claims description 21
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 239000011083 cement mortar Substances 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 12
- 238000005553 drilling Methods 0.000 abstract description 8
- 238000012937 correction Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 5
- 230000005483 Hooke's law Effects 0.000 abstract description 4
- 230000008859 change Effects 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 238000005452 bending Methods 0.000 description 5
- 238000004364 calculation method Methods 0.000 description 5
- 238000010998 test method Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
The utility model discloses a measurement experiment device for a drill column clamping point of a large-displacement well. The experiment device comprises a simulation shaft casing pipe section, a simulation shaft naked-eye section, a simulation drill column and a measurement instrument. The experiment device is simple in structure and convenient to install and operate. The effect on the correction factor eta of the clamping point position from the ratio lambda of the horizontal displacement to the vertical depth is analyzed according to the mathematical statistics method, the relation curve between eta and lambda: eta=f(lambda) is established, the effect on the measuring error from the drill stress state complexity, a drill column joint and the well track change of the large-displacement well during the well drilling process can be corrected as much as possible, the clamping point position is calculated according to the shear Hooke law, and therefore measuring precision is improved.
Description
Technical field
The utility model belongs to subterranean resource drilling field of engineering technology, relates in particular to a kind of extended reach well drill string stuck point detection experimental facilities.
Background technology
Adopt in the hang down exploitation and the extra large oily land that are widely used in offshore oilfield than the extended reach well that is not less than 2 of water, becomes the effective means that improves the rate of oil and gas recovery and reduction " ton is oily " cost of winning.In extended reach well drilling process, bit freezing is that occurrence frequency is the highest, processing spended time is the longest and causes one of drilling failure of economic loss maximum.
The method of measuring at present drill string stuck point has and lifts theoretical calculation and special sticking point instrument mensuration.Wherein, lifting theoretical calculation is that scene lifts drill string, measures pulling force and tensile elongation, according to the Hooke's law of elastomeric material, calculates the length of the above drill string of stuck point; And special sticking point instrument is by self gravitation G.I.H, sticking point instrument relies on the torsional stress of tubing string or the variation of tensile stress and its magnetic field is changed, free segment its magnetic field that twists changes, by card section its magnetic field intensity that do not twist, do not changed, can record stuck point position accordingly.
Utilize in the method for above-mentioned measurement drill string stuck point, lift the stuck point theoretical calculation formula that theoretical calculation is used, be mainly used in the simple high angle hole of straight well or casing programme, be also difficult to use in and in extended reach well, carry out stuck point prediction.And the special-purpose sticking point instrument that special sticking point instrument mensuration is used is expensive, and sticking point instrument is lowered to by self gravitation, generally in straight well, using and can arrive below certain depth, is difficult to be lowered into the degree of depth that needs measurement in extended reach well.Tubing string stress in extended reach well is complicated, if tubing string distortion is serious, the contact force of tubing string and the borehole wall or sleeve pipe can overcome the lifting or reversing of tubing string, and stuck point detection error is larger.If there is stronger interference on stratum itself to magnetic field, will cause larger measure error.
Therefore,, in current practical application, also do not find a kind of effectively for extended reach well drill string stuck point detection experimental facilities.
Utility model content
The purpose of this utility model is to provide a kind of extended reach well drill string stuck point detection experimental facilities, to solve, lacks the problem for extended reach well drill string stuck point detection experimental facilities in prior art.
An extended reach well drill string stuck point detection experimental facilities, comprises simulation wellbore hole casing section, simulation wellbore hole Open-Hole Section, simulation drill string and measuring apparatus, wherein:
Described simulation wellbore hole casing section and simulation wellbore hole Open-Hole Section join and form the passage connecting;
The drill bit of described simulation drill string is exercisable also fixing to the end of described horizontal segment through described passage, forms the stuck point position of simulation;
The free end of described simulation drill string is connected with described measuring apparatus.
Compared with prior art, the advantage of the utility model embodiment is:
Extended reach well drill string stuck point detection experimental facilities of the present utility model, simple in structure, installation and easy to operate, it divides the bleed impact on the correction factor η of stuck point position than λ of hanging down with Statistics Method, set up relation curve η=f (λ) of η and λ, revise as much as possible bit force state complex, tool joint and well track in the drilling process of extended reach well and change the impact on measure error, thereby improve measuring accuracy.
Accompanying drawing explanation
The structural representation of the extended reach well drill string stuck point detection experimental facilities that Fig. 1 provides for the utility model embodiment;
The water that the utility model embodiment that Fig. 2 is Fig. 1 provides hangs down than the coordinate schematic diagram of λ;
Fig. 3 is the schematic diagram that the simulation drill string of the utility model embodiment is out of shape while being straight round bar such as hollow grade under certain torsional interaction.
The specific embodiment
Below by specific embodiment, also by reference to the accompanying drawings the utility model is described in further detail.
As shown in Figure 1, a kind of extended reach well drill string stuck point detection experimental facilities that the utility model embodiment provides, comprise simulation wellbore hole casing section 4, simulation wellbore hole Open-Hole Section 7, simulation drill string 6 and measuring apparatus 10, wherein: (be that described simulation wellbore hole comprises straight well section, bending section and horizontal segment, wherein straight well section and bending section are casing section, horizontal segment is simulated formation Open-Hole Section, and both connect connection; )
Described simulation wellbore hole casing section 4 and simulation wellbore hole Open-Hole Section 7 join and form the passage connecting; Exercisable described passage to the end of described simulation wellbore hole Open-Hole Section 7 of passing of drill bit of described simulation drill string 6 is fixed, and forms the stuck point position of simulation; The free end of described simulation drill string 6 is connected with described measuring apparatus 10, for experiments of measuring data.
In the utility model embodiment, this extended reach well drill string stuck point detection experimental facilities is mainly comprised of simulation wellbore hole, simulation drill string and measuring apparatus.Simulation wellbore hole comprises straight well section, bending section and horizontal segment, and the curvature of bending section is adjustable; In conjunction with Fig. 2, abscissa x represents horizontal movement, and ordinate y represents vertical depth, and both ratio can obtain the vertical λ that compares of different water, be that water hangs down be the horizontal movement of directional well well and the ratio of vertical depth than λ, water hangs down and is just called extended reach well than the directional well of >=2.The length of every drilling rod is certain, and many drilling rods couple together and just equal the length of whole well.Preferably, in the present embodiment, water hangs down and is set as 2 than λ is initial.According to different water, hang down and than λ, measure the measured value of corresponding stuck point position, with Statistics Method, divide the bleed impact on the correction factor η of stuck point position than λ of hanging down, set up relation curve η=f (λ) of η and λ, revise as much as possible bit force state complex in the drilling process of extended reach well, and the impact of the magnetic field on earth's surface on the measure error of the interference formation of measuring, thereby improve measuring accuracy.
Preferably, the passage that described simulation wellbore hole casing section and simulation wellbore hole Open-Hole Section join and form to connect; Exercisable described passage to the end of described simulation wellbore hole Open-Hole Section of passing of drill bit of described simulation drill string is fixed, and forms the stuck point position of simulation; The free end of described simulation drill string is connected with described measuring apparatus, for experiments of measuring data.The experimental facilities of embodiment of the present utility model, simple in structure, with low cost, high through the revised certainty of measurement of curve η=f (λ).
Below above-mentioned extended reach well drill string stuck point detection experimental facilities is further described in detail:
Preferably, described measuring apparatus 10 comprises dial 3 and the angle of torsion pointer 1 being used in conjunction with described dial 3; One end of described angle of torsion pointer 1 is fixed on described simulation drill string 6, and the other end of described angle of torsion pointer 1 points to the dial plate of described dial 3, for the windup-degree value of measure analog drill string 6.
Preferably, described dial 3 is installed on described simulation wellbore hole casing section 4; The dial plate center of described dial 3 is fastened with the mount pad 30 with centre bore, and the centre bore of described mount pad 30 is communicated with described simulation wellbore hole casing section 4.
Preferably, described measuring apparatus 10 also comprises torductor 2; After the centre bore matched in clearance of described simulation drill string 6 and described mount pad 30, stretch out, simulation drill string 6 can freely rotate in centre bore, rotation angle range is 0～360 degree, and the external part of described simulation drill string 6 is connected with described torductor 2, the torque value for measure analog drill string 6 in twist process.
Preferably, described torductor 2 is torque spanner, can show the size of surveyed torque value, easy to operate.Certainly, in other embodiments, torductor 2 can be also other form.
Preferably, the curvature of described simulation wellbore hole casing section 4 is adjustable; The skin of described simulation wellbore hole Open-Hole Section 7 is steel pipe or pvc pipe preparation, and inside is with cement mortar filling and have through hole, and level angle is adjustable; Described simulation drill string 6 is comprised of the isometric tubular strings of multistage, and is threaded connection by joint 5; The fixed end of described simulation drill string 6 is fixedly connected with by fixator 8 is dismountable, easy to use.
Introduce the extended reach well drill string stuck point method of testing that the above-mentioned measurement mechanism of application is realized below, the principle of dealing with problems due to the method, based on aforementioned extended reach well drill string stuck point detection experimental facilities architecture basics, repeats part and repeats no more.
Extended reach well drill string stuck point method of testing, comprises the steps:
Step S100, the parts of extended reach well drill string stuck point detection experimental facilities are coordinated to assembling;
Step S200, torsion simulation drill string 6, read the measured value of measuring apparatus 10, according to different water, hang down and than λ, measure the measured value of corresponding stuck point position, with Statistics Method, divide the bleed impact on the correction factor η of stuck point position than λ of hanging down, thereby set up relation curve η=f (λ) of η and λ;
Step S300, according to shearing Hooke's law, and in conjunction with the functional relation of stuck point position correction coefficient η, draw the final formula of determining stuck point position
thereby calculate final stuck point position, wherein,
L-stuck point position (m);
The shear modulus of G-simulation drill string 6, wherein, steel generally get 80 * 10
9pa;
I
pthe moment of inertia of-simulation drill string 6, m
4;
T is the moment of torsion of simulation drill string 6, (Nm);
Polar moment of inertia is calculated as follows:
The external diameter (m) of D-simulation drill string 6, the internal diameter (m) of d-simulation drill string 6.
Preferably, step S100 also comprises:
Step S101, according to the required water of test, hang down than λ, choose length and the bending curvature of simulation wellbore hole casing section 4, and the length of simulation wellbore hole Open-Hole Section 7;
Step S102, the described simulation wellbore hole casing section 4 of choosing and simulation wellbore hole Open-Hole Section 7 are joined and form the passage connecting;
Step S103, the end by simulation drill string 6 along simulation wellbore hole casing section 4 penetrate in described passage, to the end of described simulation wellbore hole Open-Hole Section 7, fix, and form the stuck point position of simulation;
It should be noted that, in order to measure accurate convenience of calculation, in an embodiment, simulation drill string 6 is straight round bar such as hollow grade, and its material is steel.
Step S104, measuring apparatus 10 is installed on to the free end of described simulation drill string 6.
Preferably, described step S104 specifically comprises:
Rotate the torque spanner of described measuring apparatus 10, make described simulation drill string 6 at the scope intort of 0～360 degree, and directly read torque value by described torque spanner;
The angle of torsion pointer 1 of described measuring apparatus 10 rotates on the dial 3 of described measuring apparatus 10 with the torsion of described simulation drill string 6, reads corresponding windup-degree value.
Preferably, described step S103 specifically comprises:
Choose the isometric drill string of multistage, by being threaded of joint 5, form the described simulation drill string 6 of whole section, easy to install and use.This method of testing, utilizes relation curve η=f (λ) of η and λ; By water, hang down than the correction of λ, make to utilize the certainty of measurement of shearing Hooke's law calculating extended reach well drill string stuck point method of testing to improve.
A kind of extended reach well drill string stuck point detection experimental facilities that the utility model embodiment provides,
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (6)
1. an extended reach well drill string stuck point detection experimental facilities, is characterized in that, comprises simulation wellbore hole casing section (4), simulation wellbore hole Open-Hole Section (7), simulation drill string (6) and measuring apparatus (10), wherein:
Described simulation wellbore hole casing section (4) and simulation wellbore hole Open-Hole Section (7) join and form the passage connecting;
The drill bit of described simulation drill string (6) is exercisable also fixing to the end of described simulation wellbore hole Open-Hole Section (7) through described passage, forms the stuck point position of simulation;
The free end of described simulation drill string (6) is connected with described measuring apparatus (10).
2. extended reach well drill string stuck point detection experimental facilities as claimed in claim 1, is characterized in that,
Described measuring apparatus (10) comprises dial (3) and the angle of torsion pointer (1) being used in conjunction with described dial (3);
It is upper that described simulation drill string (6) is fixed in one end of described angle of torsion pointer (1), and the other end of described angle of torsion pointer (1) points to the dial plate of described dial (3).
3. extended reach well drill string stuck point detection experimental facilities as claimed in claim 2, is characterized in that,
Described dial (3) is installed on described simulation wellbore hole casing section (4);
The dial plate center of described dial (3) is fastened with the mount pad (30) with centre bore, and the centre bore of described mount pad (30) is communicated with described simulation wellbore hole casing section (4).
4. extended reach well drill string stuck point detection experimental facilities as claimed in claim 3, is characterized in that,
Described measuring apparatus (10) also comprises torductor (2);
After the centre bore matched in clearance of described simulation drill string (6) and described mount pad (30), stretch out, the external part of described simulation drill string (6) is connected with described torductor (2).
5. extended reach well drill string stuck point detection experimental facilities as claimed in claim 4, is characterized in that,
Described torductor (2) is torque spanner, can show the size of surveyed torque value.
6. extended reach well drill string stuck point detection experimental facilities as claimed in claim 1, is characterized in that,
The curvature of described simulation wellbore hole casing section (4) is adjustable;
The skin of described simulation wellbore hole Open-Hole Section (7) is steel pipe or pvc pipe preparation, and inside is with cement mortar filling and have through hole, and level angle is adjustable;
Described simulation drill string (6) is comprised of the isometric tubular strings of multistage, and is threaded connection by joint (5); The fixed end of described simulation drill string (6) is by dismountable being fixedly connected with of fixator (8).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320746471.8U CN203547716U (en) | 2013-11-22 | 2013-11-22 | Measurement experiment device for drill column clamping point of large-displacement well |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320746471.8U CN203547716U (en) | 2013-11-22 | 2013-11-22 | Measurement experiment device for drill column clamping point of large-displacement well |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103590811A (en) * | 2013-11-22 | 2014-02-19 | 中国石油大学(北京) | Experiment device and method for measuring large displacement well drill column clamping point |
| CN111997587A (en) * | 2020-08-31 | 2020-11-27 | 中国石油集团渤海钻探工程有限公司 | Experimental device for detecting measurement accuracy of sensor of card measuring instrument |
| CN115614021A (en) * | 2022-05-16 | 2023-01-17 | 中国石油大学(华东) | Simulation experiment device for casing column running friction resistance under borehole collision condition |
| CN115614021B (en) * | 2022-05-16 | 2024-10-22 | 中国石油大学(华东) | Simulation experiment device for running friction resistance of casing string under wellbore collision condition |
-
2013
- 2013-11-22 CN CN201320746471.8U patent/CN203547716U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103590811A (en) * | 2013-11-22 | 2014-02-19 | 中国石油大学(北京) | Experiment device and method for measuring large displacement well drill column clamping point |
| CN103590811B (en) * | 2013-11-22 | 2016-03-23 | 中国石油大学(北京) | A kind of extended reach well drill string stuck point detection experimental facilities and method |
| CN111997587A (en) * | 2020-08-31 | 2020-11-27 | 中国石油集团渤海钻探工程有限公司 | Experimental device for detecting measurement accuracy of sensor of card measuring instrument |
| CN111997587B (en) * | 2020-08-31 | 2021-11-02 | 中国石油集团渤海钻探工程有限公司 | Experimental device for detecting measurement accuracy of sensor of card measuring instrument |
| CN115614021A (en) * | 2022-05-16 | 2023-01-17 | 中国石油大学(华东) | Simulation experiment device for casing column running friction resistance under borehole collision condition |
| CN115614021B (en) * | 2022-05-16 | 2024-10-22 | 中国石油大学(华东) | Simulation experiment device for running friction resistance of casing string under wellbore collision condition |
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| C14 | Grant of patent or utility model | ||
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| AV01 | Patent right actively abandoned |
Granted publication date: 20140416 Effective date of abandoning: 20160323 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |