1、null null *“SE1 S “( |:50474040)bnull nullTe: V, o,1980 M 3,p V 3;V Y FZ Tb:( 610500) + 8 g u 2 Fvp2004)b:( 028) 83032037bEnullmail: anliuhq 163. com Gh# *胡琴null 刘清友( 2 Fv)null null V.复合齿形牙轮钻头及其破岩机理研究.天然气工业,2006, 26(4): 77null79.Knull1null 针对现有牙轮(钢齿a镶齿)钻头已难以对一些复杂地层进行有效钻进这一现状,根据对牙轮钻头破岩机理的新认识,研制了一种新型复
2、合齿形牙轮钻头b该新型钻头是一种具有新型齿面结构的牙轮钻头,其牙轮上的牙齿由齿形齿和盘式齿复合而构成,并且各牙轮上齿形齿和盘式齿的布置方式可根据硬地层等复杂地层的特性和钻井要求进行调整b两种齿对岩石的破碎作用将会互相影响,使得破碎岩石更加容易b为此,概述了国内外在复合齿形牙轮钻头方面所做的研究工作,并详细分析了这种新型钻头的结构特点和破岩机理,指出要研制出具有良好性能的复合齿形牙轮钻头,主要应从破岩机理a布齿方法与齿面结构a齿面强化工艺a钻头整体性能台架试验及复合齿形牙轮钻头结构设计等方面进行深入研究b5Mnull 钻井null 复合齿形null 牙轮钻头null 盘式钻头null 破岩机理n
3、ull 研究方向null nullY Gh rT1 ZEbGh (,F VGhT ?YKvbyN,ZE|YGh rqG b8 Gh?ZV V A, ?4,F/ Gh t , P Gh p v4b M 1 Gh ?C, Gh F V, L= ) T TT,7 1“b p Gh T,4 GhBt+y+ y/G aGA| ArTvilb+ E M Gh M,y7 GhG Bt+ y v4b ,14 GhBt+ y+ y/G aG,A Gh M p b Gh GhbBa Gh?Z null null GhSXTVBtTb1994 M, Baker Hughes S # hnull EarthnullB
4、oring Bit With An Advantageous Cutnullting Structurenull (U. S. 5, 311, 958) ,Gh | TM Ghbnull nullS 2 Fv TGh+ aaaZEa Z 1null4$ ,9 7 S GhZTbCXS F? “v F S/ M7 “null Gh _null,iXSE 2bCq FGh“zK T Gh Tbnull null 2 Fv # hnull Ghnull ( 99251810. 5)b L #B Gh, 1 F, + H aO, Z T V G1 pbFZEC Gh TGhM,9FFb L Gh TG
5、h8 +, ? a1, Gr q T p b 2 Fv# hnull Ghnull ( 00244696. 0)b L #B T G Pnull77null26 4 null null null null null null null null null null null null null null null?null null nullnullr 9null10b1 P Gh zT? P p ,4 Gh T b. TGh FT9 _ J. 2 F,1998, 20(1). 2 b,6a, ,. TGh _sJ. F,1998, 26(9). 3 b, n *, k. Gh M L s)J
6、. 2 F,1999, 21(2). 4 b, n *,-. Gh M LJ.G,1999, 22(4). 5 . GhT M .: F b,6a, . TGh# J .? b,r, n *,. T Gh O kJ .? b,RzZ,. TGh / k J. 2 F,2003,25( 4) .( l null 2005null09null19 nullI null b)null79null26 4 null null null null null null null null null null null null null null null?null null nullnullnull n
7、ull null null null null null null null null null null null nullGnull null 13 null null null www. trqgy. cn/ e/ abstracts. aspSTUDY ON PERFORMANCE OF FILTER CAKE SOLIDIFIED BY CINDER MTCPen Zhigang1, Feng Qian2 , He Yuyong1 , Liu Chongjian3( 1 Drilling Research Institute of Sinopec ShengliPetroleum A
8、dministration Bureau; 2 Oil Recovery Research Institute of Sinopec Shengli Oilfield Company;3 Southwest Petroleum Institute). NAT UR. GAS IND. v. 26, no. 4, pp. 74null76, 04/25/2006. (ISSN 1000- 0976; In Chinese)ABSTRACT: It has been the major technical problem for the petroleum industry to succeed
9、in making the filter cakes from cenullmenting fluid and drilling fluid solidified together. Since the filter cake from drilling fluid exists, the cement slurry cant be cenullmented soundly with the well wall, which contributes severe oil/gas/ water channeling after cementation and leads to the failu
10、reof cementation. Here the interface cementing performance of cinder MTC slurry and well cement slurry is compared under 3states of no filter cake, common mud filter cake and multinullfunction mud filter cake. The testing results show without filter cakethe cementing performance of well cement slurr
11、y is obviously better than that of cinder M TC slurry; with common filter cakeboth cinder MT C slurry and well cement slurry cant produce the satisfactory cementing performance; the well cement slurrycant make the filter cake from multinullfunction mud solidification, but the cinder MTC slurry can m
12、ake the filter cake from multinullfunction mud solidification. Joint use of the drilling technology with multinullfunction mud and the cementing technology with cinnullder MT C can relieve the displacement technology properly, make good use of the economic and technical advantages of cinderMTC techn
13、ique, and improve the cement job quality.SUBJECT HEADINGS: cementing job, MTC, filter cake, cinder, drilling fluid, cementingPen Zhigang, born in 1976, got a Ph.D degree in 2004, and is studying in the Postdoctorate Work Station of Shengli OilfieldCompang and engaged in the research on chemical proc
14、essing agents of oil/ gas fields.Add: Drilling Research Institute of Shengli Petroleum Administration Bureau, No. 85, Shanghe Rd., Dongying City, Shannulldong Province 257017, P. R. ChinaTel: 86null546null8775 170 null null Enullmail:swpi_fq sina. comSTUDY ON CONE BIT WITH COMPOSITE TOOTH AND ITS RO
15、CK BREAKING MECHANISMHu Qin, Liu Qingyou ( Southwest Petroleum Institute). NATUR. GAS IND. v. 26, no. 4, pp. 77null79,04/25/2006. (ISSN 1000- 0976; In Chinese)ABSTRACT: Aiming at the current status of the existing cone bits with steel and insert tooth are not effective in some complinullcated format
16、ions, according to the new knowledge of rocknullbreaking mechanism of cone bits, a new cone bit with compositetooth has been developed. T he new bit has the new structure of tooth surface, and its characteristic is arranging both disk toothand tungsten carbide insert tooth on one cone. Moreover, the
17、 arrangement of the two kinds of teeth is different on every cone.The arrangement of teeth on every cone can be adjusted according to the requirement of well drilling and the property of hardformation. Owing to the synergetic rocknullbreaking effect of tungsten carbide insert teeth and disk teeth, t
18、he composite of thetwo kinds of teeth shall help each other by using ones strong points to offset another ones weakness. Therefore, the cone bitwith composite tooth will have the comprehensive rocknullbreaking advantages of tungsten carbide insert bit and disk bit. In thispaper, the researches on th
19、e new bit at home and abroad are introduced, and the structural characteristics and rocknullbreakingmechanism of the new bit are analyzed in detail. It is pointed out in order to develop the highnullpowered cone bit with compositetooth, deep study on the rocknullbreaking mechanism, the structure of
20、tooth surface and method of arranging teeth, tooth surfaceintensified technology, the bench test of the new bit performance, the structure design of the cone bit with composite tooth etc.should be conducted.SUBJECT HEADINGS:well drilling, composite tooth, cone bit, disk bit, rock breaking mechanism,
21、 study directionHu Qin, born in 1980, is studying for a Ph. D degree and engaged in the research on petroleum mining machinery.Add: Southwest Petroleum Institute, Chengdu, Sichuan Province 610500, P. R. ChinaTel: 86null28null8303 2037 null null Enullmail: anliuhq null NAT URAL GAS IND USTR Y, vol. 26, no. 4 null null null null null null null null null null null April 25, 2006 null
