Kuphulika kwa Hole Drill Pipe

Blast Hole Drill Pipe Chithunzi Chowonetsedwa

Kufotokozera Kwachidule:

DTH kubowola ndodo/bowola chitoliro kuthamanga kwambiri pakukumba, kubowola madzi, migodi

Uthenga Imelo

Tsatanetsatane wa Zamalonda

Zolemba Zamalonda

Chitoliro chobowola ndi chitoliro chachitsulo champhamvu kwambiri chomwe chimagwiritsidwa ntchito pobowola.Malingana ndi njira yobowola ndi cholinga chobowola, mapaipi amabwera mosiyanasiyana ndi kutalika kwake, ndipo kutalika kwake kumakhala mamita 3-10.Mipope yobowola imalumikizidwa pamodzi imodzi ndi imodzi pamene kubowolako kumalowa mkati mwa thanthwe.Pamodzi, mapaipi amapanga chingwe chobowola, chomwe chimatha kupitilira makilomita angapo pansi.

Aliyense kubowola chitoliro tichipeza mbali zitatu welded palimodzi, chapakati gawo ndi awiri mapeto zidutswa.Chidutswa chomaliza chimakhala ndi ulusi wamphongo ("pini") kapena ulusi waakazi ("bokosi"), womwe umalola kulumikiza mapaipi awiri obowola.Chingwe chonse chobowola chimakhala ndi katundu wokwera kwambiri pakubowola, ndipo ulusi nthawi zonse umakhala wofunikira kwambiri pachitoliro chilichonse.Ngati pazifukwa zilizonse ulusi wamphongo ndi wamkazi sukugwirizana ndendende, ulusiwo ukhoza kuduka ndipo ulusi wonsewo udzaduka.

Kukula		Unyinji wadzina Lb/ft	Mawerengedwe kulemera mtundu		Khoma makulidwe
mu.	mm	Unyinji wadzina Lb/ft	lb/ft	kg/m	mu.	mm
2 3/8	60.3	6.65	6.26	9.32	0.28	7.11
2 7/8	73	10.4	9.72	14.48	0.362	9.19
3 1/2	88.9	9.5	8.81	13.12	0.254	6.45
3 1/2	88.9	13.3	12.31	18.34	0.368	9.35
3 1/2	88.9	15.5	14.63	21.79	0.449	11.4
3 1/2	88.9	15.5	14.63	21.79	0.449	11.4
4	101.6	14	12.93	19.26	0.33	8.38
4 1/2	114.3	13.75	12.24	18.23	0.271	6.88
4 1/2	114.3	16.6	14.98	22.31	0.337	8.56
4 1/2	114.3	20	18.69	27.84	0.43	10.92
5	127	16.25	14.87	22.15	0.296	7.52
5	127	19.5	17.93	26.71	0.362	9.19
5	127	19.5	17.93	26.71	0.362	9.19
5	127	25.6	24.03	35.79	0.5	12.7
5	127	25.6	24.03	35.79	0.5	12.7
5 1/2	139.7	21.90	19.81	29.51	0.361	9.17
5 1/2	139.7	24.70	22.54	33.57	0.415	10.54