CN103537213A - Mud weighting technology and special device thereof - Google Patents
Mud weighting technology and special device thereof Download PDFInfo
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- CN103537213A CN103537213A CN201310523118.8A CN201310523118A CN103537213A CN 103537213 A CN103537213 A CN 103537213A CN 201310523118 A CN201310523118 A CN 201310523118A CN 103537213 A CN103537213 A CN 103537213A
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Abstract
The invention relates to a mud weighting technology and a special device thereof, belonging to the technical field of a petroleum exploration and development drilling mud weighting technology. The special device consists of a mud pit, a sand pump, an air compressor, a limestone powder tank and a limestone powder mixing pump, wherein the limestone powder mixing pump has a tubular body combination structure, and one end of the limestone powder mixing pump is provided with two inlets in a square crossing way; the vertical inlet is connected with the mud pit by a heavy mud valve, a mud supply pipeline and a sand pump, and the horizontal inlet is connected with the limestone powder tank by a powder inlet valve and a limestone powder pipeline; the other end of the limestone powder mixing pump is connected with the mud pit by a mixing pipeline; the limestone powder tank is connected with the air compressor by an air inlet pipeline and an air source valve. The mud weighting technology comprises the steps of (1) basic mud circulation, namely enabling basic mud in the mud pit to carry out self-circulation by the sand pump, the limestone powder mixing pump and the mud pipeline; (2) mud weighting, namely gasifying limestone powder in the limestone powder tank by the air compressor, enabling the gasified limestone powder to flow into the limestone powder mixing pump, mixing the gasified limestone powder and the basic mud for weighting, and then enabling heavy mud to flow into the mud pit.
Description
Technical field:
The present invention relates to a kind of mud and increase the weight of technique and special purpose device, belong to petroleum exploration and development drilling mud and increase the weight of technology field.
Background technology:
For the oil-gas reservoir of exploration and development deep formation, drilling depth increases year by year, and the bad ground that bores chance high pressure and many pressure systems is more and more, and the range of application of high-density slurry is more and more wider.The traditional processing technology pattern of high-density slurry has three kinds of modes at present, the one, the mud of manually packed stone flour being poured into mixing hopper increases the weight of mode, the 2nd, crane adds the mud of mixing hopper to increase the weight of mode packing stone flour, and the 3rd, the mud that compressed air is blown into mixing hopper or mud pit by stone flour increases the weight of mode.These three kinds of mode weighted muds all exist stone flour to contact with surrounding air, cause in air stone flour dust large, thereby cause contaminated environment, harm personnel health, waste stone flour material.In addition, stone flour and mud need long-time circulation and stir, and cause and increase the weight of many drawbacks such as operating efficiency is low, labour intensity is large.
The disclosed a kind of horizontal mud automatic weight increasing device of patent No. ZL200520078886.8, on its base, be provided with tank body, in tank body, be provided with supporting plate tank body is separated into material chamber and air chamber, by compressed air, the stone flour that increases the weight of in cementing truck is input in tank, by compressed air by the stone flour in tank in pipeline is blown into mud pit.Although stone flour before entering mud pit in air-tight state, but when mixing with mud, still contact environment, causes dust to be suspended in air, there is equally contaminated environment, harm personnel health and waste stone flour material, also fail to solve and increase the weight of stone flour and mud Quick uniform mixed problem.
Summary of the invention:
The object of the invention is increase the weight of dust polluting environment, harm personnel health, the waste stone flour material in production technology and increase the weight of the drawback that operating efficiency is low, labour intensity is large for existing mud, provide a kind of mud to increase the weight of special purpose device.
Another object of the present invention is to provide a kind of mud and increases the weight of technique.
The present invention is comprised of mud pit, sand pump, air compressor machine, stone flour tank, stone flour mixing pump.Stone flour mixing pump is tubular body combining structure, and there are two imports of square crossing one end, and its vertical inlet is connected to mud pit by heavy sizing valve, flow inlet line, sand pump, and its horizontal inlet is connected to stone flour tank by powder entering valve, stone flour pipeline; The other end of stone flour mixing pump is connected to mud pit by mixing line; Stone flour tank is connected with air compressor machine with source of the gas valve by admission line.
Increase the weight of a technique, comprise the following steps:
(1) base slurry circulation: by sand pump, stone flour mixing pump, mud line, make base slurry in mud pit carry out self-loopa.
(2) mud increases the weight of: by air compressor machine, stone flour in stone flour tank is gasified, make it enter stone flour mixing pump, and after mixing with base slurry and increasing the weight of, heavy sizing inflow mud pit.
The invention has the beneficial effects as follows: at mud, increase the weight of in operation process, stone flour heavy weight additive and extraneous contacting have been completely cut off, stone flour and mud airtight even mixing before entering mud pit have been realized, the problems such as contaminated environment, harm personnel health, waste stone flour material have been solved, simultaneously, improve weighted mud efficiency, reduced labour intensity.
Accompanying drawing explanation:
Fig. 1 is that mud of the present invention increases the weight of process flow diagram; Fig. 2 is stone flour mixing pump structural representation of the present invention; Fig. 3 is ribbon mixer left view of the present invention; Fig. 4 is along A-A line cutaway view in Fig. 3; Fig. 5 is along B-B line cutaway view in Fig. 4.
The specific embodiment:
With reference to Fig. 1, Fig. 2, the present invention is comprised of mud pit 7, sand pump 10, air compressor machine 12, stone flour tank 15, stone flour mixing pump 1, stone flour mixing pump 1 is tubular body combining structure, one end is two imports of square crossing, wherein, vertical inlet is connected to mud pit 7 by heavy sizing valve 21, flow inlet line 11, sand pump 10, and horizontal inlet is connected to stone flour tank 15 by powder entering valve 20, stone flour pipeline 19; The other end of stone flour mixing pump 1 is connected to mud pit 7 by mixing line 6; Stone flour tank 15 is connected with air compressor machine 12 with source of the gas valve 13 by gas supply line 14.
The vertical inlet of described stone flour mixing pump 1 is provided with circulation three way 22 by the flow inlet line 11 between heavy sizing valve 21 and sand pump 10, can pass through circulating valve 23, pipeloop 24 is connected with mud pit 7.Under heavy sizing valve 21 closed conditions, can realize mud circulation, stablize mud property.
High-density slurry amount is large need to increase mud pit time, by outlet threeway 25, outlet valve 26, import threeway 9, the inlet valve 27 newly-increased mud pit that is connected in parallel.
Stone flour mixing pump 1 is comprised of powder inlet pipe 28, pulp-inlet pipe 38, mixing tube 31, and powder inlet pipe 28 external diameters are less than pulp-inlet pipe 38 internal diameters, between powder inlet pipe 28 conical outlets and pulp-inlet pipe 38 conical outlets, is uniformly distributed fulcrum 37, and making powder inlet pipe 28 and pulp-inlet pipe 38 is concentric tube; Powder inlet pipe 28, pulp-inlet pipe 38 form annular slurry chamber with steel plate ring 39; Mixing tube 31 is threaded with pulp-inlet pipe 38, packing ring 36 sealings, and the negative pressure hole 30 of mixing tube 31 connects vacuum meter 3.Mud, through slurry chamber 29 annular mouth ejections, produces negative pressure, makes stone flour stream accelerate to pass through powder inlet pipe 28 to mixing tube 31, mutually mixes with the mud of pulp-inlet pipe 38 ejections, and fluid-mixing enters mud pit 7 through mixing line 6.
On stone flour pipeline 19 between stone flour tank 15 and stone flour mixing pump 1, by atmospheric valve 17, connect blow-down pipe 16, the import of blow-down pipe 16 is positioned at stone flour tank 15 cavity tops, under outlet valve 18 closed conditions, realizes system decompression.
For improving the mixed effect of mud and stone flour, at the port of export of mixing tube 31, the anemostat 32 that is threaded is through packing ring 35 sealings, then by union 34 connection reducing pipes 33, the mixed liquor stream phase that slurry flows and stone flour are flowed is evenly mixed under variable condition.
For further improving the mixed effect of mud and stone flour, on the port of export of reducing pipe 33 passes through, swivel joint 3 is connected ribbon mixer 4 with lower swivel 5.From Fig. 3, Fig. 4 and Fig. 5, ribbon mixer 4 is cylindrical tube, is welded with rotating vane 42 on its inner tubal wall, forms eddy channel in cylindrical tube, can make mud fully mix with the mixed liquor of stone flour.Ribbon mixer 4 two ends are screw thread 41, screw thread 42, are connected respectively with upper swivel joint 3 with lower swivel 5.
Increase the weight of a technique, with reference to Fig. 1, comprise the following steps:
(1), mud circulation: by sand pump 10, stone flour mixing pump 1, mud line 6, make the interior base slurry of mud pit 7 carry out self-loopa.
(2), mud increases the weight of: by air compressor machine 12, the interior stone flour of stone flour tank 15 is gasified, make it flow into stone flour mixing pump 1, in stone flour mixing pump 1, mix and increase the weight of with base slurry, heavy sizing flows into mud pit 7.
(3) flow process pressure release.Under outlet valve 18 closed conditions, stone flour tank 15 compressed airs, enter stone flour mixing pump 1 by blow-down pipe 16, atmospheric valve 17, through mixing line 6, enter mud pit 7.
Above-mentioned mud increases the weight of in process, has completely cut off stone flour and extraneous contacting, and has eliminated stone flour dust, the problem that solved contaminated environment, endangers personnel health, stone flour waste of material; In addition, by stone flour mixing pump 1, ribbon mixer 4, make fluidization stone flour and mud is disposable mixes, improve operating efficiency, reduce labour intensity.
Claims (9)
1. a mud increases the weight of special purpose device, by mud pit (7), sand pump (10), air compressor machine (12), stone flour tank (15), stone flour mixing pump (1), formed, it is characterized in that: stone flour mixing pump (1) is tubular body combining structure, one end is two imports of square crossing, wherein, vertical inlet is connected to mud pit (7) by weighted valve (21), flow inlet line (11), sand pump (10), and horizontal inlet is connected to stone flour tank (15) by powder entering valve (20), stone flour pipeline (19); The other end of stone flour mixing pump (1) is connected to mud pit (7) by mixing line (6); Stone flour tank (15) is connected with air compressor machine (12) with source of the gas valve (13) by gas supply line (14).
2. mud according to claim 1 increases the weight of special purpose device, it is characterized in that: the vertical inlet of described stone flour mixing pump (1) is provided with circulation three way (22) by the flow inlet line (11) between heavy sizing valve (21) and sand pump (10), can pass through circulating valve (23), pipeloop (24) is connected with mud pit (7).
3. mud according to claim 1 and 2 increases the weight of special purpose device, it is characterized in that: stone flour mixing pump (1) is comprised of powder inlet pipe (28), pulp-inlet pipe (38), mixing tube (31), the outlet of powder inlet pipe (28) is conical outlet, and the outlet of pulp-inlet pipe (38) is conical outlet; Powder inlet pipe (28) is concentric tube with pulp-inlet pipe (38), and the external diameter of powder inlet pipe (28) is less than the internal diameter of pulp-inlet pipe (38).
4. mud according to claim 1 and 2 increases the weight of special purpose device, it is characterized in that: on the stone flour pipeline (19) between stone flour tank (15) and stone flour mixing pump (1), by atmospheric valve (17), connect blow-down pipe (16), the import of blow-down pipe (16) is positioned at stone flour tank (15) cavity top.
5. mud according to claim 1 and 2 increases the weight of special purpose device, it is characterized in that: the port of export in mixing tube (31), can connect anemostat (32) and reducing pipe (33) successively.
6. mud according to claim 5 increases the weight of special purpose device, it is characterized in that: the port of export in reducing pipe (33), is connected ribbon mixer (4) by upper swivel joint (3) with lower swivel (5).
7. mud according to claim 6 increases the weight of special purpose device, it is characterized in that: ribbon mixer (4) is cylindrical tube, is welded with rotating vane (42) on its inner tubal wall.
8. mud increases the weight of a technique, it is characterized in that comprising the following steps:
1) mud circulation: by sand pump (10), stone flour mixing pump (1), mud line (6), make the interior base slurry of mud pit (7) carry out self-loopa.
2) mud increases the weight of: by air compressor machine (12), by the gasification of the interior stone flour of stone flour tank (15), make it flow into stone flour mixing pump (1), and after mixing with base slurry and increasing the weight of, heavy sizing inflow mud pit (7).
9. mud according to claim 8 increases the weight of technique, it is characterized in that: under stone flour tank (15) outlet valve (18) closed condition, tank compressed air, enters mud pit (7) by blow-down pipe (16) through stone flour mixing pump (1).
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| CN201310523118.8A CN103537213B (en) | 2013-10-29 | 2013-10-29 | Mud aggravates technique and dedicated unit |
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| CN201310523118.8A CN103537213B (en) | 2013-10-29 | 2013-10-29 | Mud aggravates technique and dedicated unit |
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| CN103537213B CN103537213B (en) | 2019-03-22 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105817170A (en) * | 2015-01-04 | 2016-08-03 | 中国石油天然气股份有限公司 | Bentonite powder swabbing hydration apparatus |
| CN108144533A (en) * | 2017-12-29 | 2018-06-12 | 合肥通用机械研究院 | Marine drilling platform automation mixing device |
| KR20190047225A (en) * | 2017-10-27 | 2019-05-08 | 우민기술(주) | Mud mixing apparatus with a piping agitator |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105817170A (en) * | 2015-01-04 | 2016-08-03 | 中国石油天然气股份有限公司 | Bentonite powder swabbing hydration apparatus |
| KR20190047225A (en) * | 2017-10-27 | 2019-05-08 | 우민기술(주) | Mud mixing apparatus with a piping agitator |
| KR101985796B1 (en) * | 2017-10-27 | 2019-06-04 | 우민기술(주) | Mud mixing apparatus with a piping agitator |
| CN108144533A (en) * | 2017-12-29 | 2018-06-12 | 合肥通用机械研究院 | Marine drilling platform automation mixing device |
| CN108144533B (en) * | 2017-12-29 | 2020-09-01 | 合肥通用机械研究院有限公司 | Automatic blending equipment for offshore drilling platform |
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| CN103537213B (en) | 2019-03-22 |
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