CN111058838A - Intelligent electric formation tester - Google Patents
Intelligent electric formation tester Download PDFInfo
- Publication number
- CN111058838A CN111058838A CN201911291441.0A CN201911291441A CN111058838A CN 111058838 A CN111058838 A CN 111058838A CN 201911291441 A CN201911291441 A CN 201911291441A CN 111058838 A CN111058838 A CN 111058838A
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- China
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- battery pack
- valve
- outer cylinder
- connecting rod
- motor
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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
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
-
- 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
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
- E21B49/08—Obtaining fluid samples or testing fluids, in boreholes or wells
- E21B49/081—Obtaining fluid samples or testing fluids, in boreholes or wells with down-hole means for trapping a fluid sample
Abstract
The invention discloses an intelligent electric formation tester, which comprises an outer cylinder assembly, a pressure transmission assembly, a control assembly and a sampling assembly, wherein the outer cylinder assembly comprises an upper joint, a driving outer cylinder, a sampling outer cylinder and a lower joint which are sequentially in threaded connection from top to bottom; the invention provides an intelligent electric formation tester which is small in size, simple in structure, low in energy consumption and stable in performance, has high automation degree, reduces human misoperation and reduces the size expansion application range.
Description
Technical Field
The invention relates to an oil-gas field testing technology, in particular to an intelligent electric formation tester for casing completion oil testing and drilling midway testing.
Background
At present, common formation testing tools are divided into two types of lifting and lowering tubular column control and annular pressure control according to the operation modes of opening and closing wells. There are mainly the following problems: (1) can not be well matched with a pump screw pump and a jet pump liquid discharge and oil test technology for combined operation. (2) On-site operators must have higher technical capability, more human operation errors and low test success rate. (3) The tool has complex structure, time and labor consuming maintenance and high cost. (3) The tool is heavy and long, the construction cost is manpower, the transportation is difficult, and the like. In order to solve the problems, an intelligent formation testing tool is urgently needed to be developed to adapt to the current oil testing technology which is continuously developed. The intelligent double-valve tester of the American schlumberger company is the most advanced testing tool in the world at present, and mainly comprises a circulating valve operation module, a testing valve operation module, a hydraulic part and an electronic part. The tool has the advantages of complex structure, high machining precision, high electromechanical integration degree and high service cost. Two intelligent test valves are respectively disclosed in ZL201110185172.7 and ZL201510675122.5, but the operation times of the well opening and closing are limited due to high energy consumption in the well opening and closing process.
Disclosure of Invention
The invention aims to solve the technical problem of providing an intelligent electric formation tester with small size, simple structure, low energy consumption and stable performance, which has high automation degree, reduces human misoperation and reduces the size expansion application range.
In order to solve the technical problems, the invention adopts the technical scheme that: an intelligent electric formation tester comprises an outer cylinder assembly, a pressure transmission assembly, a control assembly and a sampling assembly, wherein the outer cylinder assembly comprises an upper joint, a driving outer cylinder, a sampling outer cylinder and a lower joint which are sequentially in threaded connection from top to bottom; the pressure transmitting assembly is arranged in the upper joint and comprises a pressure transmitting hole, an outer sensor and an inner sensor, the pressure transmitting hole is a lateral through hole arranged on the upper joint, the pressure transmitting hole is communicated with the outer sensor arranged in the upper joint, and the inner sensor is communicated with the inside of the upper joint; the control assembly is arranged in the driving outer cylinder and comprises a motor battery pack sheath, a battery pack, a driving controller and a motor transmission screw rod, the motor battery pack sheath is arranged in the driving outer cylinder, the driving outer cylinder is sleeved on the motor battery pack sheath, an inner cavity of the driving outer cylinder is divided into two cavities which are independent up and down, an upper fluid channel is formed in the side wall of a motor battery pack sheath positioned in the upper cavity, a lower fluid channel is formed in the side wall of the motor battery pack sheath positioned in the lower cavity, a battery pack, a driving controller and a motor transmission screw rod are arranged in the motor battery pack sheath, the battery pack is connected with the motor battery pack sheath through threads after being packaged, the battery pack is respectively connected with an inner sensor and an outer sensor through cables, the inner sensor and the outer sensor transmit pressure signals to the driving controller, and the lower end of the driving controller connected with the battery pack is connected with the motor transmission screw rod; the sampling assembly is arranged in the sampling outer barrel and the lower joint and comprises a valve connecting rod and a valve connecting rod base, the valve connecting rod is connected to the lower end of a motor transmission screw rod through threads, the upper portion of the valve connecting rod is provided with an upper balance valve and an upper switch valve, a motor battery pack sheath is sleeved on the upper balance valve and the upper switch valve of the valve connecting rod, the lower portion of the valve connecting rod is provided with a lower switch valve and a lower balance valve, the valve connecting rod base is sleeved on the lower switch valve and the lower balance valve and fixed on the lower joint, four fluid channels which are uniformly and symmetrically arranged along the circumferential direction are arranged on the valve connecting rod base, and two electronic pressure meters are arranged.
The distance between the upper balancing valve and the upper switching valve is greater than the distance between the upper fluid passage and the lower fluid passage.
The lower part of the lower joint is provided with an external thread which is connected with a lower test tool; the upper joint is internally provided with internal threads which are connected with an upper tool.
A first sealing ring is arranged between the upper balance valve and the motor battery pack sheath; a second sealing ring is arranged between the motor battery pack sheath and the driving outer cylinder; a third sealing ring is arranged between the upper switch valve and the motor battery pack sheath; a fourth sealing ring is arranged between the valve connecting rod base and the lower joint; a fifth sealing ring is arranged between the lower switch valve and the valve connecting rod base; and a sixth sealing ring is arranged between the lower balance valve and the valve connecting rod base.
The invention has the beneficial effects that: (1) the development of formation testing towards intellectualization and automation is realized, the well opening and closing operation is automatically completed, manual operation is not needed, and the method is simple, convenient, safe and reliable to operate. (2) The intelligent electric formation tester has flexible operation mode, can automatically complete well opening and closing actions by depending on a set program, and can also realize the well opening and closing actions by providing pulse signals through annular pressure. (3) The intelligent electric formation tester can start the battery pack only when the well is opened or closed, the stroke of the motor transmission screw rod is short, and energy is saved. (4) The intelligent electric formation tester has small size and convenient transportation, can be used in highly deviated wells and horizontal wells, and expands the application range of the formation testing process. (5) The intelligent electric formation tester can be used in combination with liquid drainage processes such as a screw pump and a jet pump, and can be used for logging the recovery of the formation pressure after liquid drainage, so that formation information in a wider range can be obtained after formation fluid fully flows. (6) The intelligent electric formation tester has the advantages of simple structure, convenient use and simple and convenient maintenance.
Drawings
FIG. 1 is a schematic diagram of the open-hole state structure of the intelligent electric tester of the present invention.
FIG. 2 is a schematic view of a shut-in state structure of the intelligent electric tester of the present invention.
In the figure, 1-top joint; 2-pressure transmission holes; 3-an external sensor; 4-an internal sensor; 5, driving the outer cylinder; 6-motor battery pack sheath; 7-a battery pack; 8-a drive controller; 9- -motor screw drive rod; 10-upper balance valve; 11, 12-fluid channels; 13-upper on-off valve; 14-sampling outer cylinder; 15-a sampling cavity; 16-a valve linkage; 17-a valve linkage base; 18-a fluid channel; 19-opening and closing a valve; 20-lower balancing valve; 21-an electronic pressure gauge; 22-lower joint; 23,24,25,26,27, 28-sealing ring.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by a person skilled in the art without making any inventive step are within the scope of the present invention.
As shown in fig. 1 and 2, the intelligent electric formation tester of the present invention comprises an outer cylinder assembly, a pressure transmission assembly, a control assembly and a sampling assembly, wherein the outer cylinder assembly comprises an upper joint 1, a driving outer cylinder 5, a sampling outer cylinder 14 and a lower joint 22 which are sequentially connected by screw threads from top to bottom; the pressure transmission assembly is arranged in the upper joint 1 and comprises a pressure transmission hole 2, an outer sensor 3 and an inner sensor 4, the pressure transmission hole 2 is a lateral through hole arranged on the upper joint 1, the pressure transmission hole 2 is communicated with the outer sensor 3 arranged in the upper joint 1, and the inner sensor 4 is communicated with the interior of the upper joint 1; the control assembly is arranged in the driving outer cylinder 5 and comprises a motor battery pack sheath 6, a battery pack 7, a driving controller 8 and a motor transmission screw 9, the motor battery pack sheath 6 is arranged in the driving outer cylinder 5, the driving outer cylinder 5 is sleeved on the motor battery pack sheath 6 and divides the inner cavity of the driving outer cylinder 5 into two cavities which are independent from each other up and down, an upper fluid channel 11 is arranged on the side wall of the motor battery pack sheath 6 in the upper cavity, a lower fluid channel 12 is arranged on the side wall of the motor battery pack sheath 6 in the lower cavity, the battery pack 7, the driving controller 8 and the motor transmission screw 9 are arranged in the motor battery pack sheath 6, the battery pack 7 is connected with the motor battery pack sheath 6 through threads after being packaged, the battery pack 7 is respectively connected with the inner sensor 4 and the outer sensor 3 through cables, and the inner sensor 4 and the outer sensor, the lower end of a driving controller 8 connected with the battery pack 7 is connected with a motor transmission screw 9; the sampling assembly is arranged in a sampling outer cylinder 14 and a lower joint 22 and comprises a valve connecting rod 16 and a valve connecting rod base 17, the valve connecting rod 16 is connected to the lower end of a motor transmission screw rod 9 through threads, an upper balance valve 10 and an upper switch valve 13 are arranged on the upper portion of the valve connecting rod 16, a motor battery pack sheath 6 is sleeved on the upper balance valve 10 and the upper switch valve 13 of the valve connecting rod 16, a lower switch valve 19 and a lower balance valve 20 are arranged on the lower portion of the valve connecting rod 16, the valve connecting rod base 17 is sleeved on the lower switch valve 19 and the lower balance valve 20 and fixed on the lower joint 22, four fluid channels 18 which are uniformly and symmetrically arranged along the circumferential direction are arranged on the valve connecting rod base 17, and two electronic pressure gauges 21 are arranged at the.
The distance between the upper balance valve 10 and the upper switching valve 13 is greater than the distance between the upper fluid passage 11 and the lower fluid passage 12.
The lower part of the lower joint 22 is provided with an external thread which is connected with a lower test tool; the upper joint 1 is internally provided with internal threads and is connected with an upper tool.
A first sealing ring 23 is arranged between the upper balance valve 10 and the motor battery pack jacket 6; a second sealing ring 24 is arranged between the motor battery pack sheath 6 and the driving outer cylinder 5; a third sealing ring 25 is arranged between the upper switch valve 13 and the motor battery pack sheath 6; a fourth sealing ring 26 is arranged between the valve connecting rod base 17 and the lower joint 22; a fifth sealing ring 27 is arranged between the lower switch valve 19 and the valve connecting rod base 17; a sixth sealing ring 28 is arranged between the lower balance valve 20 and the valve connecting rod base 17.
The drive controller 8 of the present invention employs an italian ame dc motor.
In the well shut-in state of the intelligent electric tester, the sampling outer cylinder 14, the upper switch valve 13 and the lower switch valve 19 are closed to form a sampling cavity 15.
Before the intelligent electric formation tester is put into the well, the action time of opening and closing the well and the difference value of the internal sensor and the external sensor are set for the driving controller 8 of the intelligent electric formation tester through a computer. When the intelligent electric formation tester is in a well opening state during well descending, when the pressure values of the well killing fluid columns received by the inner sensor and the outer sensor are set as the pressure of the fluid cushion, the driving controller starts to work, the driving motor drives the screw rod to rotate, the valve connecting rod moves downwards, and the functions of well closing and fluid cushion adding are completed; after the drilling is finished, setting the packer, and driving a motor to drive a screw rod to rotate by a driving controller according to the preset well opening and closing action time to drive a valve connecting rod to act so as to complete well opening and closing actions; when the well needs to be opened and closed in advance, a pump truck can be used for pumping pulse pressure to the oil sleeve annulus on the ground, so that the manual intervention well opening and closing action is realized. When the well is opened, the formation fluid flows along the sampling cavity of the fluid channel, and after the upper and lower switch valves are closed, the formation sample flowing in the final period is trapped in the sampling cavity to finish sampling.
In summary, the disclosure of the present invention is not limited to the above-mentioned embodiments, and persons skilled in the art can easily set forth other embodiments within the technical teaching of the present invention, but such embodiments are included in the scope of the present invention.
Claims (4)
1. An intelligent electric stratum tester is characterized by comprising an outer cylinder assembly, a pressure transmission assembly, a control assembly and a sampling assembly, wherein the outer cylinder assembly comprises an upper joint (1), a driving outer cylinder (5), a sampling outer cylinder (14) and a lower joint (22) which are sequentially connected by threads from top to bottom; the pressure transmitting assembly is arranged in the upper connector (1) and comprises a pressure transmitting hole (2), an outer sensor (3) and an inner sensor (4), the pressure transmitting hole (2) is a lateral through hole arranged on the upper connector (1), the pressure transmitting hole (2) is communicated with the outer sensor (3) arranged in the upper connector (1), and the inner sensor (4) is communicated with the inside of the upper connector (1); the control assembly is arranged in the driving outer cylinder (5) and comprises a motor battery pack sheath (6), a battery pack (7), a driving controller (8) and a motor transmission screw (9), wherein the motor battery pack sheath (6) is arranged in the driving outer cylinder (5), the driving outer cylinder (5) is sleeved on the motor battery pack sheath (6) and divides an inner cavity of the driving outer cylinder (5) into two cavities which are independent from top to bottom, an upper fluid channel (11) is formed in the side wall of the motor battery pack sheath (6) in the upper cavity, a lower fluid channel (12) is formed in the side wall of the motor battery pack sheath (6) in the lower cavity, the battery pack (7), the driving controller (8) and the motor transmission screw (9) are arranged in the motor battery pack sheath (6), the battery pack (7) is connected with the motor battery pack sheath (6) through threads after being packaged, and the battery pack (7) is respectively connected with the inner sensor (4, the inner sensor (4) and the outer sensor (3) transmit pressure signals to the driving controller (8), and the lower end of the driving controller (8) connected with the battery pack (7) is connected with a motor transmission screw (9); the sampling assembly is arranged in a sampling outer cylinder (14) and a lower joint (22), and comprises a valve connecting rod (16) and a valve connecting rod base (17), wherein the valve connecting rod (16) is connected to the lower end of a motor transmission screw (9) through threads, an upper balance valve (10) and an upper switch valve (13) are arranged on the upper portion of the valve connecting rod (16), a motor battery pack sheath (6) is sleeved on the upper balance valve (10) and the upper switch valve (13) of the valve connecting rod (16), a lower switch valve (19) and a lower balance valve (20) are arranged on the lower portion of the valve connecting rod (16), the valve connecting rod base (17) is sleeved on the lower switch valve (19) and the lower balance valve (20) and is fixed on the lower joint (22), four fluid channels (18) which are uniformly and symmetrically arranged along the circumferential direction are arranged on the valve connecting rod base (17), and two electronic pressure gauges (21) are arranged at the lower.
2. An intelligent electrical formation tester as claimed in claim 1, wherein the distance between the upper balancing valve (10) and the upper switching valve (13) is greater than the distance between the upper fluid passage (11) and the lower fluid passage (12).
3. An intelligent electric formation tester as claimed in claim 1, wherein the lower part of the lower joint (22) is provided with external threads for connection with a lower test tool; the upper joint (1) is internally provided with internal threads and is connected with an upper tool.
4. An intelligent electric formation tester as claimed in claim 1, wherein a first sealing ring (23) is provided between the upper balancing valve (10) and the motor battery pack sheath (6); a second sealing ring (24) is arranged between the motor battery pack sheath (6) and the driving outer cylinder (5); a third sealing ring (25) is arranged between the upper switch valve (13) and the motor battery pack sheath (6); a fourth sealing ring (26) is arranged between the valve connecting rod base (17) and the lower joint (22); a fifth sealing ring (27) is arranged between the lower switch valve (19) and the valve connecting rod base (17); and a sixth sealing ring (28) is arranged between the lower balance valve (20) and the valve connecting rod base (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911291441.0A CN111058838A (en) | 2019-12-16 | 2019-12-16 | Intelligent electric formation tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911291441.0A CN111058838A (en) | 2019-12-16 | 2019-12-16 | Intelligent electric formation tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111058838A true CN111058838A (en) | 2020-04-24 |
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ID=70301928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911291441.0A Pending CN111058838A (en) | 2019-12-16 | 2019-12-16 | Intelligent electric formation tester |
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| Country | Link |
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| CN (1) | CN111058838A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111594158A (en) * | 2020-06-11 | 2020-08-28 | 中国石油集团渤海钻探工程有限公司 | Cased well stratified drainage test process pipe column and test method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2670599Y (en) * | 2003-12-22 | 2005-01-12 | 华北石油管理局油气井测试公司 | Rotary stratigraphic tester |
| CN101793146A (en) * | 2010-03-19 | 2010-08-04 | 中国石油天然气股份有限公司 | Method for testing strata of horizontal well |
| CN102359370A (en) * | 2011-07-04 | 2012-02-22 | 中国石油化工股份有限公司 | Intelligent tester |
| CN105275429A (en) * | 2015-10-19 | 2016-01-27 | 中国石油化工股份有限公司 | Intelligent test valve |
| US20190017352A1 (en) * | 2017-07-13 | 2019-01-17 | Schlumberger Technology Corporation | Method for real-time interpretation of pressure transient test |
| US20190136659A1 (en) * | 2016-05-10 | 2019-05-09 | Halliburton Energy Services, Inc. | Tester valve below a production packer |
-
2019
- 2019-12-16 CN CN201911291441.0A patent/CN111058838A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2670599Y (en) * | 2003-12-22 | 2005-01-12 | 华北石油管理局油气井测试公司 | Rotary stratigraphic tester |
| CN101793146A (en) * | 2010-03-19 | 2010-08-04 | 中国石油天然气股份有限公司 | Method for testing strata of horizontal well |
| CN102359370A (en) * | 2011-07-04 | 2012-02-22 | 中国石油化工股份有限公司 | Intelligent tester |
| CN105275429A (en) * | 2015-10-19 | 2016-01-27 | 中国石油化工股份有限公司 | Intelligent test valve |
| US20190136659A1 (en) * | 2016-05-10 | 2019-05-09 | Halliburton Energy Services, Inc. | Tester valve below a production packer |
| US20190017352A1 (en) * | 2017-07-13 | 2019-01-17 | Schlumberger Technology Corporation | Method for real-time interpretation of pressure transient test |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111594158A (en) * | 2020-06-11 | 2020-08-28 | 中国石油集团渤海钻探工程有限公司 | Cased well stratified drainage test process pipe column and test method |
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