CN201225148Y - Non-flowing artesian well pump-following pressure measuring tube column - Google Patents
Non-flowing artesian well pump-following pressure measuring tube column Download PDFInfo
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- CN201225148Y CN201225148Y CNU2008201094167U CN200820109416U CN201225148Y CN 201225148 Y CN201225148 Y CN 201225148Y CN U2008201094167 U CNU2008201094167 U CN U2008201094167U CN 200820109416 U CN200820109416 U CN 200820109416U CN 201225148 Y CN201225148 Y CN 201225148Y
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Abstract
The utility model relates to an on-pump piezometer pipe string in a non-flowing well, which is applied to the dynamic monitoring of an oil reservoir of an oil field. The on-pump piezometer pipe string in a non-flowing well is characterized in that the lower part of an oil pipe is connected with a screen pipe, and the lower part of the screen pipe is connected with a shockproof manometer carrier; a high-accuracy storage electronic manometer is fixed in the shockproof manometer carrier, and the lower part of the manometer carrier is connected with the oil pipe or a tail pipe; pressure transmission holes are distributed on the outer wall of the shockproof manometer carrier, shockproof springs and a lower fixed seat are arranged at the bottom of the manometer carrier, and the electronic manometer is fixed on the lower fixed seat; a cylindrical upper fixed seat is arranged at the upper end of the electronic manometer, and shockproof springs are arranged between an upper cover and the upper fixed seat. The utility model has the advantages of high quality of recorded data, and rich obtainment and high accuracy of strata information so as to substitute the prior rough dynamic monitoring of the non-flowing well only by a moving liquid level and a static liquid level and provide reliable bases for subsequent measures and the establishment and the adjustment of development schemes of the oil field.
Description
Technical field
The utility model relates to oilfield oil recovery technique field, particularly a kind of deposit dynamic monitoring method.Be a kind of in nonflowing well, employing with pump pressure measurement tubing string.
Background technology
Along with the oil field progressively enters the middle and later periods exploitation, the stratum energy loss, flowing well will progressively change nonflowing well into.Flowing well is fewer and feweri, and the ratio of the shared producing well of nonflowing well is increasing.The same with flowing well, nonflowing well also needs to carry out transient well test, gets the pressure measurement data of getting accurate nonflowing well entirely, is the current problem that presses for solution for the establishment of oil field dynamic analysis and development plan provides authentic communication.
Past oil field nonflowing well measuring technology mainly still rests on and adopts on the common test method.Generally adopt two kinds of methods of reflection sounding level surface method and annulus logging, used instrument is generally liquid level echometer, minor diameter pressure gauge.Level surface method admission data accuracy is lower, the reflection information content is little, and the annulus logging method needs the setting-up eccentricity well head, but it is few to reach the well of this test technology requirement.Even installed for heavy oil wells under the situation of decentralized wellhead, pressure gauge also is difficult to the degree of depth that achieves the goal, and usually has the phenomenon of steel wire coiled tubing post, tests very risky.These factors cause nonflowing well transient well test admission data difficulty very big, can only lean on static data to formulate the production measure, cause measure efficient lower, can't satisfy the needs of present oil field development.
Summary of the invention
The purpose of this utility model provides a kind of nonflowing well with pump pressure measurement tubing string, can enroll reliable oil-well strata data at nonflowing well, realize nonflowing well transient well test test, accurately to ask for formation physical parameters, carry out completion evaluation, calculate single well controlled reserves and survey position, reservoir boundary and character.Satisfy the demand of present oil field development to the meticulous dynamic analysis of oil reservoir.
The technical solution adopted in the utility model is: nonflowing well comprises with pump pressure measurement tubing string: oil pipe, screen casing and manometer are formed.Sucker rod and oil well pump are arranged in the oil pipe, the oil pipe bottom connects screen casing, bottom at screen casing connects the Shockproof type manometer, is fixed with high accuracy storage type electronic pressure gauge in the Shockproof type manometer, and the manometer bottom even connects oil pipe or tail pipe (approximate screen casing) again.The instrument of termination is fixed according to the actual conditions of well under the manometer.
Sidewall at shockproof manometer is distributed with 4～16 pressure transmission holes, and antirattle spring is arranged at the manometer bottom, and cylindrical lower fixed seat is arranged at antirattle spring top.Electronic pressure gauge is fixed on the lower fixed seat.In the upper end of electronic pressure gauge cylindrical upper fixed seat is arranged, antirattle spring is arranged on the top of upper fixed seat.Loam cake is arranged at the top at manometer, between loam cake and the upper fixed seat antirattle spring is arranged.
Adopt screwed connection between electronic pressure gauge and upper fixed seat and electronic pressure gauge and the lower fixed seat.
Described high accuracy storage type electronic pressure gauge is the high accuracy storage type electronic pressure gauge of demarcating through high accuracy full-automatic pressure calibrating instrument, and model is SPARTEK-1052 and DDR-2000.Admission PRESSURE DATA precision is more than 0.05%.
For balance lower fixed seat and manometer bottom space and extraneous pressure.In the manometer bottom end pressure transmission hole is arranged.
In order to make fixation between upper fixed seat and the manometer, two steady pins are arranged between manometer and upper fixed seat.
The length of shockproof manometer is 1.6m, and external diameter is 63.5mm.
During use: at first two high accuracy storage type electronic pressure gauges are serially connected, two ends are screwed in respectively on upper fixed seat and the lower fixed seat.Put into antirattle spring in the manometer bottom, the following fixedly end, electronic pressure gauge and the upper fixed seat that assemble are put into manometer.Install and fix pin.Put into antirattle spring on upper fixed seat top, screw loam cake.Notice that spring length should be moderate, guarantee that the up and down damping space of pressure gauge in manometer is reasonable.
The technology that nonflowing well adopts with the pump pressure measurement is: A, with the down-hole string G.I.H, shockproof manometer 5 with tubing string down to the oil reservoir middle part or near the oil reservoir medium position.B, need carry out the pressure transient well testing by test purpose, generally be opening well and making production after a period of time, treats that pressure involves certain limit in the oil reservoir, and shut-in pressure survey power is recovered.After C, the end to be tested, shockproof manometer is tripped out with down-hole string, dismantle shockproof manometer 5 taking-up pressure gauges and carry out data readback and data interpretation analysis.
According to geology sound attitude data, carry out the well testing simulation and test design with pump, carry out electronic pressure gauge demarcation and test sample programming according to design, carry out the automatic sample temperature in down-hole, number pressure strong point, trip out oil well pump laggard line data information material playback and processing.
By adopting early stage The Method of Deconvolution, carry out afterflow correction, can discern stratum Radial Flow, oil reservoir type effectively and carry out the fracturing effect analysis, increase the utilization rate of test data, improve the order of accuarcy of explanation results, reduce the closing well testing time to greatest extent, increase the production time, can save for 1/3 testing time by adding up approximately.
By the reservoir delineation test Interpreting Method, set up the flow through oil reservoir model, can explain the stratum filtration parameter, reach more than 92% with the dynamic coincidence rate of production.The utilization achievement data can accurately be estimated the stratum fluid ability, estimates completion effect and measure effect, estimates stratum energy, calculates position, reservoir boundary and scope and control crude oil reserve, for development plan provides reliable basis.
The beneficial effects of the utility model: the utility model nonflowing well can be tested with pump with pump pressure measurement tubing string, replace the method for in the past only carrying out the nonflowing well dynamic monitoring roughly, have admission data quality height, obtain many, the advantage of high accuracy of formation information by dynamic and static liquid level.By in the examination of more than 200 mouthfuls of well surveyings, success rate reaches 99%, and the test data precision reaches the explanation requirement.The strata pressure that obtains is true and reliable, provides reliable foundation for testing well carries out next step measure and oilfield development program formulation and adjustment.
1) creates surplus the test output value 1,050 ten thousand yuan, provide a large amount of dynamic datas of oil-gas reservoir accurately for Construction unit simultaneously;
2) each oil recovery factory, oil field implements 199 mouthfuls of oil-water well measures altogether by 18 comprehensive regulation blocks, controls the 1.54 ten thousand tons of crude oil that successively decrease.15 blocks are administered efficient increase by 8.3%, and measure increases 5.16 ten thousand tons of oil.
3) oil field production capacity is built 25 mouthfuls of block tests, by the integrated use of test achievement, determines new Jing28Kou, builds up 14.2 ten thousand tons of production capacity.By the integrated use of nonflowing well monitoring materials, oil field development has obtained surplus in the of 15,000 ten thousand yuan economic benefit.
Description of drawings
Fig. 1 is the down-hole string schematic diagram that the utility model adopts with the pump test technology.
Fig. 2 is a manometer structural representation of the present utility model.
Among the figure, 1. oil pipe, 2. sucker rod, 3. oil well pump 4. screen casings, 5. manometer, 6. tail pipe, 7. loam cake, 8. antirattle spring, 9. steady pin, 10. upper fixed seat, 11. electronic pressure gauges, 12. pressure transmission holes, 13. lower fixed seats, 14. end pressure transmission holes.
The specific embodiment
Embodiment 1: nonflowing well comprises with pump pressure measurement tubing string: oil pipe 1, screen casing 4 and manometer 5 are formed.Sucker rod 2 and oil well pump 3 are arranged in oil pipe.Oil pipe 1 bottom connects screen casing 4, connects Shockproof type manometer 5 in the bottom of screen casing 4, is fixed with two high accuracy storage type electronic pressure gauges 11 in the Shockproof type manometer, and manometer 5 bottoms are connected with oil pipe or tail pipe.
The length of shockproof manometer 5 is 1.6m, and external diameter is 63.5mm.Being distributed with 16 diameters at the sidewall of shockproof manometer 5 is 8 millimeters pressure transmission hole 12.16 pressure transmission holes 12 are divided into 4 rows, and every row is evenly distributed with 4.Antirattle spring 8 is arranged at manometer 5 bottoms, and cylindrical lower fixed seat 13 is arranged at antirattle spring 8 tops.Electronic pressure gauge 11 is fixed on the lower fixed seat 13.Have between cylindrical upper fixed seat 10 electronic pressure gauges 11 and upper fixed seat 10 and electronic pressure gauge 11 and the lower fixed seat 13 in the upper end of electronic pressure gauge 11 and to adopt screwed connection.On the top of upper fixed seat 10 antirattle spring 8 is arranged.At the top of manometer 5 loam cake 7 is arranged, between loam cake 7 and the upper fixed seat 10 antirattle spring 8 is arranged.Two steady pins 9 are arranged between manometer 5 and upper fixed seat 10.Described high accuracy storage type electronic pressure gauge 11 is high accuracy storage type electronic pressure gauges 11 of demarcating through high accuracy full-automatic pressure calibrating instrument, and model is SPARTEK-1052 and DDR-2000.Admission PRESSURE DATA precision is more than 0.05%.It is 10 millimeters end pressure transmission hole 14 that a diameter is arranged in manometer 5 bottoms.
29, No. 32 floor of K49 well are opened in insolation in Mays 5 in 2003, and the well section is 3051.6-3057.1m, day produce oil 32t.May 9 with shockproof manometer with under the down-hole string in the oil reservoir dark 3062.1m, opening well and making production after about 453 hours closing well carried out pressure buildup test 526 hours, June 19, the end of day test tripped out shockproof manometer with down-hole string, dismantled shockproof manometer taking-up pressure gauge and carried out data readback and data interpretation analysis.
The K49 fault block is positioned at divergent southern Slope of West Depression Q100 well fault block, and the new JingK49Jing that goes into operation on this fault block obtains high produced hydrocarbon fluid in SHAHEJIE FORMATION, and day produce oil 32t is moisture 5%, oil pressure 4.2-4.6MPa, casing pressure 8.4-8.6MPa.
In order to estimate the true production capacity of this piece, adopt with pump pressure reservoir delineation test method, recognize that this fault block strata pressure is 28.85MPa, reservoir permeability is better, and formation effective permeability is 20.47 * 10
-3μ m
2, the skin factor of calculating is-2.7, shows that this well is a super complete well, and the tomography distance of reservoir delineation test curve reflection is 115m, and original oil water boundaries distance is 180m, explains basically identical with 3-D seismics, also matches with geological knowledge.According to the reservoir delineation test result, adopt the float amount to produce, control limit water fltting speed makes that this well is moisture to maintain lower level always.Test, evaluation, production by to exploration well K49 well have improved the awareness to oil reservoir greatly.In conjunction with meticulous stratum correlation technique, fine structures interpretation technique, Fine Reservoir Numerical technology etc. are to this district 101 * 10 again
4T control reserves carry out system evaluation, on the basis that evaluation well K49-1 succeeds, improve geology, reservoir model, have realized that block integral evaluation, integral body verifies (66 * 10
4T), whole drawing up a plan, on-the-spot whole drilling well, whole deployment formation testing scheme, whole definite flooding pattern arrive whole the operation, drilling well success rate realization 100%, formation ability 6.3 * 10 again
4T.Embodied from the high level of " estimating--verifying--scheme-enforcement-effect ".Evaluation and exploitation by this district have begun to take shape the assessment technique that is fit to hidden lithological pool, and these technology are laid a good foundation for level in the appraisal from now on.
Calculate by this area being carried out comprehensive geology research and reserves, the K49 fault block increases oil area 0.6km newly
2, newly-increased proved reserves 66 * 10
4T, recoverable reserves 19.8 * 10
4T.Finished the establishment of development plan simultaneously, disposed several 9 mouthfuls of total well, each 1 mouthful of prospect pit, evaluation well utilization, 7 mouthfuls of stepout wells; Wherein, 7 mouthfuls of oil wells, 2 mouthfuls in well, oil well individual well are joined product 15t, always produce horizontal 105t daily, and year is built production capacity 3.15 * 10
4T; Well injection allocation 50m
3, the total day flat 100m of water filling
3, year water filling 3.0 * 10
4m
3At present, all finishing drilling operations of 7 mouthfuls of production capacity wells (K49-2, K49-3, K49-4, K49-5, K49-6, K49-7, K49-8) of this piece, 5 mouthfuls of oil wells (K49-2, K49-3, K49-4, K49-5, K49-6), 2 mouthfuls of water injection wells (K49-7, K49-8); The horizontal 105t of total daily output, year is built production capacity 3.15 * 10
4T.Realized the high level of scheme implementation rate 100%, production capacity well success rate 100%, production capacity completion rate 100%.
Claims (6)
1, a kind of nonflowing well is with pump pressure measurement tubing string, comprise: oil pipe (1), screen casing (4) and manometer (5) are formed, sucker rod (2) and oil well pump (3) are arranged in oil pipe, it is characterized in that: oil pipe (1) bottom connects screen casing (4), bottom at screen casing (4) connects Shockproof type manometer (5), be fixed with high accuracy storage type electronic pressure gauge (11) in the Shockproof type manometer (5), manometer (5) bottom is connected with oil pipe or tail pipe;
Sidewall at shockproof manometer (5) is distributed with 4～16 pressure transmission holes (12), antirattle spring (8) is arranged at manometer (5) bottom, cylindrical lower fixed seat (13) is arranged at antirattle spring (8) top, electronic pressure gauge (11) is fixed on the lower fixed seat (13), in the upper end of electronic pressure gauge (11) cylindrical upper fixed seat (10) is arranged, on the top of upper fixed seat (10) antirattle spring (8) is arranged, at the top of manometer (5) loam cake (7) is arranged, between loam cake (7) and the upper fixed seat (10) antirattle spring (8) is arranged.
2, nonflowing well according to claim 1 is characterized in that with pump pressure measurement tubing string: adopt screwed connection between electronic pressure gauge (11) and upper fixed seat (10) and electronic pressure gauge (11) and the lower fixed seat (13).
3, nonflowing well according to claim 1 is with pump pressure measurement tubing string, it is characterized in that: described high accuracy storage type electronic pressure gauge (11) is the high accuracy storage type electronic pressure gauge of demarcating through high accuracy full-automatic pressure calibrating instrument (11), model is SPARTEK-1052 and DDR-2000, and admission PRESSURE DATA precision is more than 0.05%.
4, nonflowing well according to claim 1 is characterized in that with pump pressure measurement tubing string: in manometer (5) bottom end pressure transmission hole (14) is arranged.
5, according to claim 1 or 2 or 3 or 4 described nonflowing wells with pump pressure measurement tubing string, it is characterized in that: between manometer (5) and upper fixed seat (10), two steady pins (9) are arranged.
6, according to claim 1 or 2 or 3 or 4 described nonflowing wells with pump pressure measurement tubing string, it is characterized in that: the length of manometer (5) is 1.6m, external diameter is 63.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201094167U CN201225148Y (en) | 2008-07-24 | 2008-07-24 | Non-flowing artesian well pump-following pressure measuring tube column |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201094167U CN201225148Y (en) | 2008-07-24 | 2008-07-24 | Non-flowing artesian well pump-following pressure measuring tube column |
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| CN201225148Y true CN201225148Y (en) | 2009-04-22 |
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| CNU2008201094167U Expired - Lifetime CN201225148Y (en) | 2008-07-24 | 2008-07-24 | Non-flowing artesian well pump-following pressure measuring tube column |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104420866A (en) * | 2013-09-04 | 2015-03-18 | 中国石油天然气股份有限公司 | Interlayer interference testing method and device |
| CN112343584A (en) * | 2020-11-03 | 2021-02-09 | 中国石油天然气股份有限公司 | Pressure working barrel for external channeling of horizontal well inspection pipe and verification method thereof |
-
2008
- 2008-07-24 CN CNU2008201094167U patent/CN201225148Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104420866A (en) * | 2013-09-04 | 2015-03-18 | 中国石油天然气股份有限公司 | Interlayer interference testing method and device |
| CN112343584A (en) * | 2020-11-03 | 2021-02-09 | 中国石油天然气股份有限公司 | Pressure working barrel for external channeling of horizontal well inspection pipe and verification method thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090422 |